New Orleans - An oil platform that burned for more than day after a massive explosion sank into the Gulf of Mexico on Thursday, the U.S. Coast Guard said.
Crews searched by air and water for 11 workers still missing from the Deepwater Horizon, though one relative said family members have been told it's unlikely anyone survived Tuesday night's blast.
Supply vessels had been shooting water into the rig try to control the flames enough to keep it afloat, but couldn't, Coast Guard Petty Officer Katherine McNamara said.
Rescue crews have covered the 1,940-square-mile search area by air 12 times and by boat five times.
The boats searched all night, hoping the missing workers might have been able to get to a covered lifeboat with supplies.