---

Rescue efforts under way after oil rig explosion in Gulf

[Posted at 11:53 a.m.] U.S. Coast Guard Petty Officer Bill Colclough tells CNN that 12 people from the rig are in the water immersion suits as they await rescue.

Colclough told CNN there are reports the rig is still on fire.

"We don't know what caused the rig to catch on fire," he told CNN, noting the incident is under investigation.

Asked about concerns regarding oil leaks or pollution, Colclough said "there are reports the rig was not actively producing any product, so we don't know if there's any risk of pollution."

[Posted at 11:43 a.m.] U.S. Coast Guard Petty Officer Bill Colclough tells CNN that all 13 workers involved in the rig explosion are accounted for, but one person is injured.

Coast Choppers are on the way to the site 80 miles south of Vermilion Bay.

[Posted at 11:33 a.m.] An oil rig has exploded 80 miles off the coast of Louisiana, with 12 people overboard and one missing, the Coast Guard said Thursday morning.

Rescue attempts are under way for at least 12 people, Coast Guard spokesman John Edwards told CNN. 13 people were on board the rig total, Edwards said, noting 12 have been accounted for, but one person was missing.

The accident took place 80 miles off the coast of Louisiana on the Vermilion Oil rig 380, which is owned by Houston-based Mariner Energy.

The Coast Guard has multiple helicopters, an airplane and several Coast Guard cutters en route. It's unknown if there are any injuries.

---