Dozens killed in Congo mine clash
The miners were about 100m underground when the accident happened in Orientale province.
Rescue efforts were hampered as crews had difficulty reaching the mine, which lies in a jungle area where armed groups operate, a local official said.
Such accidents are common in DR Congo, where mines are often unregulated.
Profits from the country’s enormous mineral resources are widely seen as helping fuel ethnic conflict in DR Congo, while most of the population remains in poverty.