PJSC Raspadskaya's flagship Raspadskaya coal mine in southern Siberia suspended operations after a roof collapse killed one person, Interfax reported June 4.
The incident took place around midday Mezhdurechensk time, or 8 a.m. Moscow time, according to the Russian news agency.
"There was [a] local incident with a slight rock separation, that presumably led to [the] death of one worker," Raspadskaya owner Evraz PLC's senior manager of media communications, Anatoly Dzhumaylo, told S&P Global Market Intelligence.
"All mining works are suspended until the necessary investigations are done," Dzhumaylo added.
The mine's tunnels are being assessed, and a commission is looking into the cause of the collapse, a representative of the Kemerovo regional government's coal industry department said.
In February, Russian federal prosecutors indicted eight people, including three former managers of the Raspadskaya mine, on criminal charges related to a methane gas explosion and collapse that killed 91 workers in 2010.