Anglo American Platinum on Tuesday asked workers to stay away from its Rustenburg mining operations in South Africa after the security situation in the area had worsened, according to Reuters.

Only 20 percent of its Rustenburg employees have been reporting for work in recent days after thousands joined illegal wildcat strikes which have held the mining industry at ransom, the article says.

Amplats said in a statement that it intends to resume operations in Rustenburg on Wednesday. The company also says that workers at its Union Mine in the northern Limpopo province have refused to go underground, Reuters reports.