COPIAPO, Chile (Reuters) - Rescuers started drilling small holes deep inside a mine in northern Chile on Sunday in a bid to rescue 33 miners trapped for three days, and the mining minister said the effort could take more than a week.
Rescuers faced a major setback on Saturday when a fresh collapse blocked the ventilation shaft rescue workers were descending. No contact has been made with the miners, trapped since Thursday 4.5 miles (7 km) inside the winding mine, and around 900 feet (300 metres) vertically underground.