Published: Apr 21, 2010 8:55 PM EDT

NEW ORLEANS, Lousiana - The Coast Guard says a burning offshore drilling platform is tilting badly after a fiery explosion in the Gulf of Mexico as a frantic search continues for at least 11 people missing.

The Coast Guard says most of the 126 workers on the rig Deepwater Horizon escaped safely after the explosion off the Louisiana coast about 10 p.m. Tuesday.

But at least 11 are unaccounted for and several hospitals say they are treating workers for injuries. At least two are still

Helicopters, an airplane and boats searched for any sign of the missing workers. Meanwhile, the rig was listing at about 70 degrees and threatening to topple over.

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