SANTIAGO (Reuters) -Four of five trapped workers at Codelco's El Teniente copper mine have been found dead, the company said on Sunday, as rescue teams work to clear underground passages that collapsed in a strong tremor last week.

SANTIAGO (Reuters) -Chilean copper miner Codelco has discovered the remains of one of five trapped miners at its flagship El Teniente mine, it said on Saturday, bringing the death toll from a collapse caused by a strong tremor on Thursday to two people.

Four miners have been found dead after a collapse at Chile's El Teniente copper mine, with rescuers continuing to search for the fifth miner. The disaster occurred following a quake, prompting investigations into its causes.