Copper miner Codelco (COBRE.UL) has asked Chile's mining regulator for permission to reopen a part of its flagship El Teniente mine after a collapse last week that killed six people, said two sources with knowledge of the matter.

Codelco has requested Chile's mining regulator to reopen a section of El Teniente mine after a collapse last week killed six. Operations were initially suspended, but maintenance continues to preserve equipment.

Chilean state-run miner Codelco said on Wednesday it has responded to three information requests on last week’s collapse at its El Teniente copper mine that left six people dead, after the government requested four safety reports.