The world’s No. 1 copper producer Codelco is reeling from a fatal accident, saying an earth tremor caused a collapse at a new section of its biggest mine, with five people trapped underground.

A second worker has been found dead and four others remain trapped underground after a collapse at a copper mine in Chile.

Rescue teams in Chile are searching for five miners trapped after a partial collapse triggered by a tremor killed one colleague and halted operations at the world’s largest underground copper mine.