Schwere Methangas-Explosion in Sibirien.

Emergency workers gather near the destroyed ventilation unit at the Raspadskaya mine, hit by explosions, in the city of Mezhdurechensk in the west Siberian region of Kemerovo, Russia, Monday, May 10, 2010. Two explosions tore through the Russia's largest underground coal mine in western Siberia, over the weekend with the death toll still rising, Monday, and a rescue operation is underway for about 60 people who are still trapped underground, according to government officials. (AP Photo/Sergey Ponomarev)
Emergency workers gather near the destroyed ventilation unit at the Raspadskaya mine, hit by explosions, in the city of Mezhdurechensk in the west Siberian region of Kemerovo, Russia, Monday, May 10, 2010. Two explosions tore through the Russia's largest underground coal mine in western Siberia, over the weekend with the death toll still rising, Monday, and a rescue operation is underway for about 60 people who are still trapped underground, according to government officials. (AP Photo/Sergey Ponomarev) © AP | AP
General view of the Raspadskaya mine in the Kemerovo region of western Siberia, Russia, on 09 May 2010, after twin coal mine explosions caused by methane gas. 64 miners remain underground at the Raspadskaya company-operated mine, according to a source in the regional department for emergencies. Some of them had been in radio contact with officials outside. EPA/STRINGER +++(c) dpa - Bildfunk+++
General view of the Raspadskaya mine in the Kemerovo region of western Siberia, Russia, on 09 May 2010, after twin coal mine explosions caused by methane gas. 64 miners remain underground at the Raspadskaya company-operated mine, according to a source in the regional department for emergencies. Some of them had been in radio contact with officials outside. EPA/STRINGER +++(c) dpa - Bildfunk+++ © dpa | dpa
Rescue workers search for survivors on 09 May 2010 at Raspadskaya mine in the Kemerovo region of western Siberia, Russia, after twin coal mine explosions caused by methane gas. 64 miners remain underground at the Raspadskaya company-operated mine, according to a source in the regional department for emergencies. Some of them had been in radio contact with officials outside. EPA/STRINGER +++(c) dpa - Bildfunk+++
Rescue workers search for survivors on 09 May 2010 at Raspadskaya mine in the Kemerovo region of western Siberia, Russia, after twin coal mine explosions caused by methane gas. 64 miners remain underground at the Raspadskaya company-operated mine, according to a source in the regional department for emergencies. Some of them had been in radio contact with officials outside. EPA/STRINGER +++(c) dpa - Bildfunk+++ © dpa | dpa
Relatives read the list of miners, who happened to be in the mine during the blast, in the administrative building of Raspadskaya mine in the Kemerovo region in Russia's coal-rich Kuzbass region May 9, 2010. Two blasts at a big Siberian coal mine killed at least 12 people and the search for dozens trapped underground was halted after a damaged ventilation shaft choked the mine with smoke and gas, Russian officials said on Sunday. REUTERS/Alexander Urakhchin (RUSSIA - Tags: DISASTER ENERGY)
Relatives read the list of miners, who happened to be in the mine during the blast, in the administrative building of Raspadskaya mine in the Kemerovo region in Russia's coal-rich Kuzbass region May 9, 2010. Two blasts at a big Siberian coal mine killed at least 12 people and the search for dozens trapped underground was halted after a damaged ventilation shaft choked the mine with smoke and gas, Russian officials said on Sunday. REUTERS/Alexander Urakhchin (RUSSIA - Tags: DISASTER ENERGY) © REUTERS | REUTERS
Miners prepare for rescue operations at the Raspadskaya mine in the Kemerovo region of western Siberia, Russia, on 09 May 2010, after twin coal mine explosions caused by methane gas. 64 miners remain underground at the Raspadskaya company-operated mine, according to a source in the regional department for emergencies. Some of them had been in radio contact with officials outside. EPA/STRINGER +++(c) dpa - Bildfunk+++
Miners prepare for rescue operations at the Raspadskaya mine in the Kemerovo region of western Siberia, Russia, on 09 May 2010, after twin coal mine explosions caused by methane gas. 64 miners remain underground at the Raspadskaya company-operated mine, according to a source in the regional department for emergencies. Some of them had been in radio contact with officials outside. EPA/STRINGER +++(c) dpa - Bildfunk+++ © dpa | dpa