An oil rig in the Gulf of Mexico that caught fire after an explosion on Tuesday, has now sunk.
The US Coast Guard is still looking for 11 missing workers after the blast at the Deepwater Horizon rig. There has been no sign of the group.
Other workers on the rig, off Louisiana, have been brought ashore.
The BBC reports an aerial search had resumed at dawn on Thursday, but there has been no sign of those missing.
Seventeen of the 126 workers were evacuated by air and sea on Wednesday. Another 100 were later rescued by boat.
On Wednesday the rig was reportedly tilting about 70 degrees and was threatening to topple over.
Deepwater Horizon was drilling for BP on Mississippi Canyon Block 252. It was working on a part of the block known as the Macondo prospect, in 1.5km of water.