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Rescuers descend into a gold mine where miners are trapped inside after a landslide in San Juan Arriba, Choluteca in southern Honduras, early Thursday, July 3, 2014. The entrance to the artisanal mine has a vertical entrance, is located on a steep slope, and operated by local residents. (AP Photo/Fernando Antonio) ( Honduras Miners Trapped )

Honduran President Juan Orlando Hernandez (L) talks to relatives of some of the at least 11 workers trapped in the San Juan mine, in the Honduran southern department of Choluteca, on July 3, 2014 a day after the gold mine collapsed. Rescuers in Honduras said there were signs of life Thursday from within the mine as they intensified efforts to save them. Using sound detection equipment lowered into the unlicensed mine, "we've received signals, sounds in the part of the mine where the workers are trapped," Moises Alvarado, head of the national emergency authority, told local radio. The cave-in on Wednesday struck the mine at a depth of 80 meters (260 feet) near the southern town of El Corpus. Rescuers cannot use machinery to try to get to the miners because the ground is unstable. (ORLANDO SIERRA/AFP/Getty Images) ( 531351034 )

A man sleeps as firefighters and rescuers try to reach the at least 11 miners trapped inside the San Juan mine, in the Honduran southern department of Choluteca, on July 3, 2014 a day after the gold mine collapsed. Rescuers in Honduras said there were signs of life Thursday from within the mine as they intensified efforts to save them. Using sound detection equipment lowered into the unlicensed mine, "we've received signals, sounds in the part of the mine where the workers are trapped," Moises Alvarado, head of the national emergency authority, told local radio. The cave-in on Wednesday struck the mine at a depth of 80 meters (260 feet) near the southern town of El Corpus. Rescuers cannot use machinery to try to get to the miners because the ground is unstable. (ORLANDO SIERRA/AFP/Getty Images) ( 531351192 )

A man makes his way into the collapsed San Juan mine, in the Honduran southern department of Choluteca, on July 3, 2014 a day after the gold mine collapsed trapping at least 11 workers. Rescuers in Honduras said there were signs of life Thursday from within the mine as they intensified efforts to save them. Using sound detection equipment lowered into the unlicensed mine, "we've received signals, sounds in the part of the mine where the workers are trapped," Moises Alvarado, head of the national emergency authority, told local radio. The cave-in on Wednesday struck the mine at a depth of 80 meters (260 feet) near the southern town of El Corpus. Rescuers cannot use machinery to try to get to the miners because the ground is unstable. (ORLANDO SIERRA/AFP/Getty Images) ( 531350967 )

People wait (background) as firefighters and rescuers try to reach the at least 11 miners trapped inside the San Juan mine, in the Honduran southern department of Choluteca, on July 3, 2014 a day after the gold mine collapsed. Rescuers in Honduras said there were signs of life Thursday from within the mine as they intensified efforts to save them. Using sound detection equipment lowered into the unlicensed mine, "we've received signals, sounds in the part of the mine where the workers are trapped," Moises Alvarado, head of the national emergency authority, told local radio. The cave-in on Wednesday struck the mine at a depth of 80 meters (260 feet) near the southern town of El Corpus. Rescuers cannot use machinery to try to get to the miners because the ground is unstable. (ORLANDO SIERRA/AFP/Getty Images) ( 531351107 )

Relatives and friends of miners trapped in the San Juan mine, in the Honduran southern department of Choluteca, cry on July 3, 2014 in the town of El Corpus, a day after the gold mine collapsed trapping at least 11 workers. Rescuers in Honduras said there were signs of life Thursday from within the mine as they intensified efforts to save them. Using sound detection equipment lowered into the unlicensed mine, "we've received signals, sounds in the part of the mine where the workers are trapped," Moises Alvarado, head of the national emergency authority, told local radio. The cave-in on Wednesday struck the mine at a depth of 80 meters (260 feet) near the southern town of El Corpus. Rescuers cannot use machinery to try to get to the miners because the ground is unstable. (ORLANDO SIERRA/AFP/Getty Images) ( 531350911 )

A firefighter gestures during attempts to reach the at least 11 miners trapped inside the San Juan mine, in the Honduran southern department of Choluteca, on July 3, 2014 a day after the gold mine collapsed. Rescuers in Honduras said there were signs of life Thursday from within the mine as they intensified efforts to save them. Using sound detection equipment lowered into the unlicensed mine, "we've received signals, sounds in the part of the mine where the workers are trapped," Moises Alvarado, head of the national emergency authority, told local radio. The cave-in on Wednesday struck the mine at a depth of 80 meters (260 feet) near the southern town of El Corpus. Rescuers cannot use machinery to try to get to the miners because the ground is unstable. (ORLANDO SIERRA/AFP/Getty Images) ( 531351139 )

A man looks into a gold mine where miners are trapped after a landslide in San Juan Arriba, Choluteca, in southern Honduras, early Thursday, July 3, 2014. The entrance to the artisanal mine has a vertical entrance, is located on a steep slope, and operated by local residents. (AP Photo/Fernando Antonio) ( Honduras Miners Trapped )

Firefighters are seen during the search for at least 11 miners trapped inside the San Juan mine, in the Honduran southern department of Choluteca, on July 3, 2014 a day after the gold mine collapsed. Rescuers in Honduras said there were signs of life Thursday from within the mine as they intensified efforts to save them. Using sound detection equipment lowered into the unlicensed mine, "we've received signals, sounds in the part of the mine where the workers are trapped," Moises Alvarado, head of the national emergency authority, told local radio. The cave-in on Wednesday struck the mine at a depth of 80 meters (260 feet) near the southern town of El Corpus. Rescuers cannot use machinery to try to get to the miners because the ground is unstable. (ORLANDO SIERRA/AFP/Getty Images) ( 531350878 )

A relative of one of 11 miners are trapped inside a gold mine after a landslide, waits for news of the rescue in San Juan Arriba, Choluteca in southern Honduras, Thursday, July 3, 2014. More than 300 Red Cross volunteers, firefighters and people who live near the mine in the town of El Corpus were digging by hand in an effort to reach the miners. (AP Photo/Fernando Antonio) ( Honduras Miners Trapped )

People gather outside a gold mine where a landslide trapped miners working inside, in San Juan Arriba, Choluteca in southern Honduras, Thursday, July 3, 2014. The entrance to the artisanal mine has a vertical entrance, is located on a steep slope, and operated by local residents. (AP Photo/Fernando Antonio) ( Honduras Miners Trapped )