Russian rescuers were scrambling to save 13 workers trapped inside a giant gold mine near the Chinese border for a second day on Wednesday, as officials warned of a “difficult situation”.
Russia has said the miners have been stuck since Monday after a rockslide covered them in rubble at the Pioneer mine in the Far Eastern Amur region.
The mine is one of the largest in the world and one of the most productive in Russia.
“The situation remains difficult,” regional governor Vasily Orlov said on social media after visiting the scene.
He has introduced a regional state of emergency and said that there has still been no contact with the trapped miners.
Authorities have said they are some 125 meters (more than 400 feet) underground.
Orlov said rescuers from neighbouring regions were also involved in the operation.
Anatoly Suprunovsky, deputy head of Russia’s Emergency Situations Ministry said a fresh team of experienced rescuers from Siberia’s Kuzbas mining region had arrived to help Wednesday, bringing more specialised equipment.
The ministry posted a video of workers trudging through a light layer of snow in the giant remote mine — wearing white helmets with headlamps. They joined a team of more than 100 other rescuers already working at the site.
Officials have already opened an investigation for a suspected breach of safety rules. Lax safety measures have often led to deadly accidents in Russian mines and factories.
The Kremlin said Tuesday President Vladimir Putin “gave the order to take all necessary measures to save the miners”.
Authorities have posted aerial photographs showing the extent of the rescue mission in the giant remote mine surrounded by deserted steppes.
Orlov said earlier on Wednesday that rescuers had began drilling a hole to try to reach the miners.
“Even if the passage does not lead to people it will be possible to lower a camera into it to assess the situation and lay communication lines,” he said.
There was still “no communication with the miners”, he added. But officials believe they are alive and Orlov said the trapped group are workers from other regions.
