PHOTOS: Tensions still high despite ceasefire in Ukraine

Pro-Russian separatist fighters smoke as they stand guard at a checkpoint on September 10, 2014 on a road of the Donetsk airport. Ukrainian President Petro Poroshenko said on Wednesday that most Russian troops had been withdrawn from the country, in a move he said boosted the prospects for peace. AFP PHOTO/PHILIPPE DESMAZESPHILIPPE DESMAZES/AFP/Getty Images ( 533251154 )

A Pro-Russian separatist fighter stands guard at a check point on September 10, 2014 on a road of the Donetsk airport. AFP PHOTO/PHILIPPE DESMAZESPHILIPPE DESMAZES/AFP/Getty Images ( 533252460 )

A soldier holds a mashine-gun as he guards at a checkpoint controlled by Ukrainian forces on September 10, 2014, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533268319 )

A pro-Russian militant shows his ID card as he speaks to the Ukrainian press on September 10, 2014 in the middle of a road controled by rebels on one side and by Ukrainian forces on the other side, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533268317 )

DONETSK, UKRAINE - SEPTEMBER 10: A separatist fighter stands guard on September 10, 2014 in Donetsk, Ukraine. Sporadic shelling is heard in Donetsk daily and gunfire in the port city of Mariupol. The city of Donetsk has only around 300,000 people remaining out of a population of 900,000 due to the fighting. (Photo by Spencer Platt/Getty Images) ( 455165824 )

A Ukrainian soldier guards at a checkpoint controlled by Ukrainian forces on September 10, 2014, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533265521 )

ALOVAISK, UKRAINE - SEPTEMBER 10: An elderly woman walks through the streets of a town which was damaged during heavy fighting in August on September 10, 2014 in Alovaisk, Ukraine. Alovaisk, which is about an hour outside of the separatist held city of Donetsk, saw sustained shelling in August and is still the site of fighting between Ukrainian troops and the Russian backed separatists. Sporadic shelling is heard in Donetsk daily and gunfire in the port city of Mariupol. The city of Donetsk has only around 300,000 people remaining out of a population of 900,000 due to the fighting. (Photo by Spencer Platt/Getty Images) ( 455162082 )

ALOVAISK, UKRAINE - SEPTEMBER 10: Tatyana Grigorivna, begs for help to locate her son, Nikolai, who has disappeared from the town of Alovaisk which was damaged during heavy fighting in August on September 10, 2014 in Alovaisk, Ukraine. (Photo by Spencer Platt/Getty Images) ( 455163384 )

ALOVAISK, UKRAINE - SEPTEMBER 10: A separatist fighter, part of a detail guarding an aid delivery, stands in a town badly damaged during heavy fighting on September 10, 2014 in Alovaisk, Ukraine. Alovaisk, which is about an hour outside of the separatist held city of Donetsk, saw sustained shelling in August and is still the site of fighting between Ukrainian troops and the Russian backed separatists. (Photo by Spencer Platt/Getty Images) ( 455161990 )

A Ukrainian soldier controls passengers before they get on a bus at a checkpoint controlled by Ukrainian forces on September 10, 2014, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533268096 )

ALOVAISK, UKRAINE - SEPTEMBER 10: Residents stand on the balcony of their building which was damaged during heavy fighting in August on September 10, 2014 in Alovaisk, Ukraine. Alovaisk, which is about an hour outside of the separatist held city of Donetsk, saw sustained shelling in August and is still the site of fighting between Ukrainian troops and the Russian backed separatists. (Photo by Spencer Platt/Getty Images) ( 455162090 )

ALOVAISK, UKRAINE - SEPTEMBER 10: A boy looks out from a wall damaged during heavy fighting on September 10, 2014 in Alovaisk, Ukraine. Alovaisk, which is about an hour outside of the separatist held city of Donetsk, saw sustained shelling in August and is still the site of fighting between Ukrainian troops and the Russian backed separatists. (Photo by Spencer Platt/Getty Images) ( 455161982 )

ALOVAISK, UKRAINE - SEPTEMBER 10: A childs hand is viewed along a wall damaged during heavy fighting on September 10, 2014 in Alovaisk, Ukraine. (Photo by Spencer Platt/Getty Images) ( 455163390 )

ALOVAISK, UKRAINE - SEPTEMBER 10: Residents stand outside of their building, which was damaged during recent heavy fighting, and cook on September 10, 2014 in Alovaisk, Ukraine. (Photo by Spencer Platt/Getty Images) ( 455165800 )

ALOVAISK, UKRAINE - SEPTEMBER 10: A woman looks out from the balcony of her building which was damaged during heavy fighting in August on September 10, 2014 in Alovaisk, Ukraine.(Photo by Spencer Platt/Getty Images) ( 455163376 )

ALOVAISK, UKRAINE - SEPTEMBER 10: Separatists fighters stand beside a Ukrainian military truck which was destroyed during recent fighting on September 10, 2014 in Alovaisk, Ukraine. (Photo by Spencer Platt/Getty Images) ( 455164696 )

A Ukrainian soldier guards at a checkpoint controlled by Ukrainian forces on September 10, 2014, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533265471 )

A Ukrainian soldier guards at a checkpoint controlled by Ukrainian forces on September 10, 2014, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533265482 )

Ukrainian soldiers guard at a checkpoint controlled by Ukrainian forces on September 10, 2014, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533265728 )

TOPSHOTS A Ukrainian soldier walks in a field as he guards at a checkpoint controlled by Ukrainian forces on September 10, 2014, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533267726 )

Ukrainian soldiers guard at a checkpoint controlled by Ukrainian forces on September 10, 2014, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533266001 )

A Ukrainian soldier sits as he guards at a checkpoint controlled by Ukrainian forces on September 10, 2014, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533265979 )

Ukrainian soldiers smoke as they guard at a checkpoint controlled by Ukrainian forces on September 10, 2014, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533266029 )

Ukrainian soldiers guard at a checkpoint controlled by Ukrainian forces on September 10, 2014, near the small eastern Ukrainian city of Slavyanoserbsk, in the Lugansk region. AFP PHOTO/ ANATOLII STEPANOVANATOLII STEPANOV/AFP/Getty Images ( 533266266 )