Rescue workers conduct search and rescue work at the site where a large-scale landslide hit a mining area in Maizhokunggar County of Lhasa, southwest China's Tibet Autonomous Region, March 30, 2013. Rescuers have found bodies and are still searching for survivors more than 37 hours after a massive landslide buried 83 miners at the polymetal mine in Tibet. (Xinhua/Purbu Zhaxi)

Firefighters carry bodies of two miners at the site where a large-scale landslide hit a mining area in Maizhokunggar County of Lhasa, southwest China's Tibet Autonomous Region, March 30, 2013. Rescuers have found two bodies and are still searching for survivors more than 37 hours after a massive landslide buried 83 miners at the polymetal mine in Tibet. (Xinhua/Purbu Zhaxi)

Firefighters carry a body at the site where a large-scale landslide hit a mining area in Maizhokunggar County of Lhasa, southwest China's Tibet Autonomous Region, March 30, 2013. Rescuers have found two bodies and are still searching for survivors more than 37 hours after a massive landslide buried 83 miners at the polymetal mine in Tibet. (Xinhua/Chogo)

Rescue workers conduct search and rescue work at the site where a large-scale landslide hit a mining area in Maizhokunggar County of Lhasa, southwest China's Tibet Autonomous Region, March 30, 2013. Rescuers have found bodies and are still searching for survivors more than 37 hours after a massive landslide buried 83 miners at the polymetal mine in Tibet. (Xinhua/Chogo)

A firefighter and a sniffer dog search for trapped miners at the site where a large-scale landslide hit a mining area in Maizhokunggar County of Lhasa, southwest China's Tibet Autonomous Region, March 30, 2013. Rescuers have found bodies and are still searching for survivors more than 37 hours after a massive landslide buried 83 miners at the polymetal mine in Tibet. (Xinhua/Chogo) (wjq)

Rescue workers conduct search and rescue work at the site where a large-scale landslide hit a mining area in Maizhokunggar County of Lhasa, southwest China's Tibet Autonomous Region, March 30, 2013. Rescuers have found bodies and are still searching for survivors more than 37 hours after a massive landslide buried 83 miners at the polymetal mine in Tibet. (Xinhua/Purbu Zhaxi)

Rescue workers conduct search and rescue work at the site where a large-scale landslide hit a mining area in Maizhokunggar County of Lhasa, southwest China's Tibet Autonomous Region, March 30, 2013. Rescuers have found bodies and are still searching for survivors more than 37 hours after a massive landslide buried 83 miners at the polymetal mine in Tibet. (Xinhua/Purbu Zhaxi)