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An anti-government protester is caught in tear gas during clashes with riot police in Bangkok, Thailand, Tuesday, Feb. 18, 2014. Clashes between police and anti-government demonstrators in Bangkok left three people dead and 57 others injured Tuesday as riot police attempted to clear out protest camps around the Thai capital. (AP Photo/Wally Santana) ( Thailand Politics )

An armed Thai police officer, center, aims his rubber bullet rifle as medical team carry a injured person on a stretcher during a clash between police force and anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Apichart Weerawong) ( APTOPIX Thailand Politics )

Anti-government protesters crawl on the ground as they come under fire from riot police during clashes in Bangkok, Thailand, Tuesday, Feb. 18, 2014. (AP Photo/Wally Santana) ( Thailand Politics )

Riot police officers fall on the ground after a bomb blast near them during a clash with anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Apichart Weerawong) ( APTOPIX Thailand Politics )

A gunshot injured Thai anti-government protester is carried to a hospital during clashes with policemen at a protest site in Bangkok, Thailand, 18 February 2014. EPA/RUNGROJ YONGRIT ( THAILAND POLITICS PROTEST )

Riot police fire rubber bullets into the crowds of anti-government protesters during a clash in Bangkok, Thailand, Tuesday, Feb. 18, 2014. Emergency medical officials say that one civilian was killed and 50 people were injured in clashes between Thai police and anti-government protesters in Bangkok. (AP Photo/Wally Santana) ( Thailand Politics )

Thai riot police officers face with anti-government protesters during clashes at a protest site near Democracy Monument in Bangkok, Thailand, 18 February 2014. EPA/PETER CHAN ( THAILAND POLITICS PROTEST )

A Thai anti-government protester rises his hands up as he faces with a unit of riot police officers during clashes at a protest site in Bangkok, Thailand, 18 February 2014. EPA/RUNGROJ YONGRIT ( THAILAND POLITICS PROTEST )

Thai anti-government protesters shout slogans behind barbed wire at a protest site near Government House in Bangkok, Thailand, 18 February 2014. EPA/RUNGROJ YONGRIT ( THAILAND POLITICS PROTEST )

Thai anti-government protesters wave national flags during a rally near Government House in Bangkok, Thailand, 18 February 2014. EPA/NARONG SANGNAK ( THAILAND POLITICS PROTEST )

A Thai policeman offers prayers before marching forward in an attempt to push back anti-government protestors near the Government House in Bangkok on February 18, 2014. TAFP PHOTO / Manjunath Kiran/AFP/Getty Images ( 527200359 )

A grenade thrown by anti-government protesters explodes among a group of police attempting to clear the protesters from their occupied camp at Phan Fah Bridge in Bangkok on February 18, 2014. Thai Prime Minister Yingluck Shinawatra will be charged with neglect of duty over a rice farm subsidy scheme and could be removed from office if found guilty, an anti-graft panel announced on February 18. News of the charges came just hours after violent clashes broke out between riot police and anti-government demonstrators in the capital Bangkok that left at least two people dead, including a policeman, and dozens wounded. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527200071 )

A Thai anti-government protester kicks a truck carrying a unit of policemen as they withdraw from the area after clashes at a protest site in Bangkok, Thailand, 18 February 2014. One EPA/RUNGROJ YONGRIT ( THAILAND POLITICS PROTEST )

Thai riot policemen stand guard after demanding protesters to leave the area around the Government House in Bangkok on February 18, 2014. AFP PHOTO/PORNCHAI KITTIWONGSAKUL/AFP/Getty Images ( 527199537 )

Thai policemen with their injured colleague, left, retreat after a clash between police force and anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Wason Wanichakorn) ( Thailand Politics )

Thai anti-government protesters throw rocks to police trucks during clashes at a protest site in Bangkok, Thailand, 18 February 2014. EPA/RUNGROJ YONGRIT ( THAILAND POLITICS PROTEST )

A Thai anti-government protester is arrested during clashes with policemen at a protest site in Bangkok, Thailand, 18 February 2014. EPA/PETER CHAN ( THAILAND POLITICS PROTEST )

Thai riot police officers aim their shotgun as they withdraw from an area after clashes with anti-government protesters at a protest site near Democracy Monument in Bangkok, Thailand, 18 February 2014. EPA/RUNGROJ YONGRIT ( THAILAND POLITICS PROTEST )

Thai anti-government protesters push against riot policemen during clashes at a protest site near Democracy Monument in Bangkok, Thailand, 18 February 2014. EPA/PETER CHAN ( THAILAND POLITICS PROTEST )

A bomb injured Thai riot police officer is carried to a hospital after a grenade attack during clashes with anti-government protesters at a protest site near Democracy Monument in Bangkok, Thailand, 18 February 2014. EPA/PETER CHAN ( THAILAND POLITICS PROTEST )

Thai anti-government protesters react under a portrait of King Bhumibol Adulyadej during clashes with police at a protest site near Democracy Monument in Bangkok, Thailand, 18 February 2014. EPA/RUNGROJ YONGRIT ( THAILAND POLITICS PROTEST )

Thai riot police officers shield themselves as they withdraw from the area after clashes with anti-government protesters at a protest site near Democracy Monument in Bangkok, Thailand, 18 February 2014. EPA/RUNGROJ YONGRIT ( THAILAND POLITICS PROTEST )

Thai anti-government protesters flee from gunshots during clashes with anti-riot policeman at a protest site near Government House in Bangkok, Thailand, 18 February 2014. EPA/RUNGROJ YONGRIT ( THAILAND POLITICS PROTEST )

A Thai anti-government protester wears a gas mask at a protest site near Government House in Bangkok, Thailand, 18 February 2014. EPA/RUNGROJ YONGRIT ( THAILAND POLITICS PROTEST )

A Thai anti-government protester throws rocks to a police van as they withdraw after clashes at a protest site near Democracy Monument in Bangkok, Thailand, 18 February 2014. EPA/RUNGROJ YONGRIT ( THAILAND POLITICS PROTEST )

Thai anti-government protest leader Suthep Thaugsuban (3-R) walks on a street near Government House in Bangkok, Thailand, 18 February 2014. EPA/NARONG SANGNAK ( THAILAND POLITICS PROTEST )

A Thai anti-government protester walks past a poster against caretaker Prime Minister Yingluck Shinawatra at a protest site in Chaengwattana road, Bangkok, Thailand, 18 February 2014. EPA/NARONG SANGNAK ( THAILAND POLITICS PROTEST )

Thai Buddhist monk Luang Pu Buddha Isara, one of the core leaders of the anti-government protesters, sit under a portrait of Thai King Bhumibol Adulyadej (T) at a protest site in Chaengwattana road, Bangkok, Thailand, 18 February 2014. EPA/NARONG SANGNAK ( THAILAND POLITICS PROTEST )

Thai special forces police officers secure the area near Government House in Bangkok, Thailand, 18 February 2014. EPA/NARONG SANGNAK ( THAILAND POLITICS PROTEST )

Thai riot police officers stand guard near Government House in Bangkok, Thailand, 18 February 2014. EPA/NARONG SANGNAK ( THAILAND POLITICS PROTEST )

Thai special forces police officers secure the area near Government House in Bangkok, Thailand, 18 February 2014. EPA/NARONG SANGNAK ( THAILAND POLITICS PROTEST )

An injured foreign reporter is carried by medic team to an ambulance during a clash between police force and anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Wason Wanichakorn) ( APTOPIX Thailand Politics )

An overturned police van lies on a road after clashes between police and anti-government demonstrators in Bangkok, Thailand, Tuesday, Feb. 18, 2014. (AP Photo/Sakchai Lalit) ( Thailand Politics )

Emergency medics rush to the scene at Phan Fah Bridge after a grenade was thrown at police injuring at least 6 during the police operation to reclaim the site on February 18, 2014 in Bangkok, Thailand. Thai police tried to reclaim an area of land which anti government protestors had been occupying for the last few weeks but were finally pushed back by protestors after street gun fire and explosions rocked the area. The recent controversial elections exposed an increasingly bitter divide in the country. After disrupting the general election, anti-government demonstrators are continuing their campaign to oust Prime Minister Yingluck Shinawatra and the three week old 'Bangkok Shutdown,' has blocked major intersections. The Thai government imposed a 60-day state of emergency in Bangkok and the surrounding provinces in an attempt to cope with the on-going political turmoil however this decree has had no effect on the mass protests. (Photo by Nick McGrath/Getty Images) ( 470028185 )

Thai Police take cover on a street near Phan fah Bridge after grenade explosions and gunfire killed one officer and seriously injuring several police offers during the police operation to reclaim the protest site on February 18, 2014 in Bangkok, Thailand. (Photo by Nick McGrath/Getty Images) ( 470028377 )

A protestor is detained by riot police during the police operation to reclaim Phan Fah Bridge on February 18, 2014 in Bangkok, Thailand. (Photo by Nick McGrath/Getty Images) ( 470028593 )

A Police officer aims his handgun towards a side street away from the main front line where protestors and police had been injured trying to reclaim Phan Fah Bridge on February 18, 2014 in Bangkok, Thailand. (Photo by Nick McGrath/Getty Images) ( 470028599 )

A protestor is detained by riot police during the police operation to reclaim Phan Fah Bridge on February 18, 2014 in Bangkok, Thailand. (Photo by Nick McGrath/Getty Images) ( 470028603 )

Protesters and reporters run for cover from police gunfire during a clash between policemen and anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Apichart Weerawong) ( Thailand Politics )

An injured Thai policeman is helped on a stretcher by medic officials and protesters after an explosion during a clash between policemen and anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Apichart Weerawong) ( Thailand Politics )

A Thai protester confronts with police officers prior to a clash between police force and anti-government protesters near democracy monument, background, Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Wason Wanichakorn) ( Thailand Politics )

Anti-government protesters carry tires next to pools of blood from an injured protester as they move their barricade closer to the police's position during clashes in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527204873 )

Thai policemen with one injured, right, call for an end as they retreat during a clash between police force and anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Wason Wanichakorn) ( Thailand Politics )

An injured Thai police is treated by a colleague on the back of a pick up truck during a clash between police force and anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Wason Wanichakorn) ( APTOPIX Thailand Politics )

An injured protester is helped by medic team to an ambulance during a clash between police force and anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Wason Wanichakorn) ( Thailand Politics )

An anti-government protester throws a stone to riot police during clashes in Bangkok, Thailand, Tuesday, Feb. 18, 2014. (AP Photo/Sakchai Lalit) ( Thailand Politics )

A protester, right, tries to stop colleagues from attacking policemen retreating on a pick up truck during a clash between police force and anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Wason Wanichakorn) ( Thailand Politics )

Riot police officers hold protective shields on a pickup truck after clashes in Bangkok, Thailand, Tuesday, Feb. 18, 2014. (AP Photo/Sakchai Lalit) ( Thailand Politics )

Thai policemen check their rifles while retreating during a clash between police force and anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Wason Wanichakorn) ( Thailand Politics )

An injured anti-government protester is carried away by medics during clashes in Bangkok, Thailand, Tuesday, Feb. 18, 2014. (AP Photo/Wally Santana) ( Thailand Politics )

An injured Thai police officer, center bottom, is helped by colleagues after a bomb blast near them during a clash with anti-government protesters Tuesday, Feb. 18, 2014 in Bangkok, Thailand. (AP Photo/Apichart Weerawong) ( Thailand Politics )

People look at overturned police van after clashes in Bangkok, Thailand, Tuesday, Feb. 18, 2014. (AP Photo/Sakchai Lalit) ( Thailand Politics )

A lone anti-government protester holds a ribbon that reads "king's soldier" in front of a line of riot police during a stand-off in Bangkok, Thailand, Tuesday, Feb. 18, 2014. (AP Photo/Wally Santana) ( APTOPIX Thailand Politics )

A riot police officer lies motionless after a massive head injury during a clash with protesters in Bangkok, Thailand, Tuesday, Feb. 18, 2014. Hundreds of riot police attempted to clear out anti-government protest sites around Thailand's capital on Tuesday, triggering clashes that left three people dead and 57 others injured. (AP Photo/Wally Santana) ( APTOPIX Thailand Politics )

Thai riot police officers battle with anti-government protesters after demanding the protesters to leave the area around the Government House in Bangkok on February 18, 2014. AFP PHOTO/PORNCHAI KITTIWONGSAKUL/AFP/Getty Images ( 527198191 )

Thai anti government protesters throw bricks at vehicles after clashing with riot policemen following their demands for protesters to leave the area around the Government House in Bangkok on February 18, 2014. AFP PHOTO/PORNCHAI KITTIWONGSAKUL/AFP/Getty Images ( 527199117 )

Thai anti government protesters move rubber wheel to make bunkers after clashing with riot policemen following their demands for protesters to leave the area around the Government House in Bangkok on February 18, 2014. AFP PHOTO/PORNCHAI KITTIWONGSAKUL/AFP/Getty Images ( 527199029 )

Thai riot policemen look at an injured riot policeman after clashes with anti-government protesters in Bangkok on February 18, 2014. AFP PHOTOSTR/AFP/Getty Images ( 527199631 )

Police prepare to embark on an operation to clear anti-government protesters from the Phan Fah Bridge in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527200066 )

Police fire rubber bullets at anti-government protesters during a failed operation to retake the Phan Fah Bridge from the protesters in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527200054 )

A police officer (C) injured by a grenade thrown by anti-government protesters during a failed attempt to retake the Phan Fah Bridge is assisted by his fellow officers in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527200146 )

A police officer (C) injured by a grenade thrown by anti-government protesters during a failed attempt to retake the Phan Fah Bridge is assisted by medical officers in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527200148 )

Thai policemen alight from a vehicle after they withdrew from a stand-off with the anti-government protestors near the Government House in Bangkok on February 18, 2014. AFP PHOTO / Manjunath Kiran/AFP/Getty Images ( 527200436 )

An anti-government protestor looks on towards Government House in Bangkok on February 18, 2014. AFP PHOTO / Manjunath Kiran/AFP/Getty Images ( 527200655 )

An anti-government protestor looks on towards Government House in Bangkok on February 18, 2014. AFP PHOTO / Manjunath Kiran/AFP/Getty Images ( 527201066 )

An anti-government protestor with his face covered in a plastic bag looks on towards Government House in Bangkok on February 18, 2014. AFP PHOTO / Manjunath Kiran/AFP/Getty Images ( 527200658 )

An anti-government protestor holds a poster of Thai King Bhumibol Adulyadej during a stand-off with Thai Police near Government House in Bangkok on February 18, 2014. AFP PHOTO / Manjunath Kiran/AFP/Getty Images ( 527200738 )

A vehicle burnt during earlier clashes lies in the foreground as anti-government protestors wave Thai flags during a stand-off with Thai police near Government House in Bangkok on February 18, 2014. AFP PHOTO / Manjunath Kiran/AFP/Getty Images ( 527201017 )

Anti-government protesters roll tires down the street as they advance their position on retreating police at Phan Fah Bridge in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527202929 )

An anti-government protester strips down to his underwear and taunts police after security forces fired tear gas at protesters during their retreat from a failed effort to retake Phan Fah Bridge in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527202931 )

A press photographer is helped by medical personnel after being injured during clashes between police and anti-government protesters near Phan Fah Bridge in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527204865 )

Anti-government protesters move their barricade closer to police's position during clashes in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527204840 )

Anti-government protesters face off with police as they move their barricades closer to the officers during clashes at Phan Fah Bridge in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527204897 )

Police carry an injured colleague after a grenade was thrown into their ranks by anti-government protesters at Phan Fah Bridge in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527204849 )

Injured police officers are spread across the ground as their comrades return fire after a grenade was thrown into their ranks by anti-government protesters at Phan Fah Bridge in Bangkok on February 18, 2014. AFP PHOTO / KC Ortiz/AFP/Getty Images ( 527204854 )

Thai police officers prepare to march forward in an attempt to push back anti-government protestors near the Government House in Bangkok on February 18, 2014. AFP PHOTO / Manjunath Kiran/AFP/Getty Images ( 527200908 )