NEW ORLEANS — The Coast Guard and crew members of surrounding vessels were responding to a pre-dawn fire this morning on an oil platform in the Gulf of Mexico off the coast of Louisiana, the Coast Guard said.

Four people aboard the platform went into the water and were rescued by the Mary Wyatt Milano, a supply vessel, the Coast Guard said. No injuries were reported. Personnel aboard four vessels were fighting the fire.

Clean Gulf, an oil spill response organization, was on its way to the platform.

The cause of the blaze was under investigation.