The South African government has launched a rescue operation at an abandoned gold mine in the country’s North West province, where at least 109 men have died, a group representing the miners said, after local authorities cut off vital supplies in a dramatic bid to crack down on the country’s illegal mining trade.

Authorities launched an operation in November to force the illegally operating miners out by cutting off food and water from the surface for a time. Hundreds are thought to remain underground.

STILFONTEIN, South Africa (Reuters) -South African rescuers have pulled out 36 dead bodies and 82 survivors from a gold mine deep underground in two days of operations, police said on Tuesday, adding that the survivors would all face illegal mining and immigration charges.