Rescue teams in Chile searched Friday 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.
At least 100 people were involved in the perilous search effort nearly 12 hours after the event was registered, said Andres Music, general manager of El Teniente mine in Rancagua, some 100 kilometers (62 miles) south of Santiago.
