South African police said they used stun grenades and rubber bullets to disperse 3,000 “violent” striking miners in the restive platinum belt near Marikana, where 34 workers were shot dead in 2012.

Thousands of South African miners have celebrated a wage deal that ended their deadly strike, but violence erupted at a different pit after police broke up what they called an illegal gathering.

Industrial action has spread in South Africa with a wildcat strike by 15,000 gold miners, while few workers reported for duty at in the fourth week of a stoppage at a platinum mine.

More than 30 people have been killed after South Africa’s police officers opened fire on striking workers at a Lonmin PLC mine.