South African President Cyril Ramaphosa is facing calls to order a national inquiry into a police operation that was meant to combat illegal mining but ended up leaving 87 miners to die underground as authorities attempted to force them to surrender during a monthslong standoff.

The miners are suspected to have died of starvation and dehydration, although no causes of death have been released.

No more illegal miners are believed to be trapped underground at a gold mine in South Africa, volunteers working with rescue teams have said.