Rescuers have drilled more than a third of the way down into an Utah mountainside in their efforts to find six trapped miners.
They're drilling a third hole into the rear of the mine, in the hope that the men ran into the area in search of air. The drill still has 900 feet to go before it breaks through.
Two other holes bored into the mine revealed little information about the fate of the workers. A camera that was sunk into a chamber where the men were believed to be showed one sign of the miners' presence: a tool bag.
A co-owner of the mine says that indicates crews are close to where the miners were working.
Rescuers cleared about 680 feet of the 2,000 feet of rubble they expected to encounter in the mine's main passageway.