Chile miner's warning 'was ignored'
Chilean investigators are looking into reports that operators ignored warnings from one of the miners before the collapse that trapped 33 men.
Deputy Carlos Vilches, a legislative commission member, said that miner Juan Llanes has alleged operators refused his request to leave the mine three hours before it collapsed on August 5.
Llanes reportedly had heard loud sounds that indicated a collapse was brewing.
Vilches is overseeing the opening of a public exhibit of the capsule used in last week's rescue of the miners after 69 days underground.
The exhibit in the plaza outside Chile's presidential palace in the capital Santiago, is drawing hundreds of people.
