Rescue teams made contact Monday with four crew members still inside the Golden Ray, a day after the cargo ship capsized off the coast of Georgia, according to the U.S. Coast Guard.

The crew members apparently became trapped in the engine room Sunday after the vessel overturned and caught fire in the early morning hours on the St. Simons Sound off the coast of Brunswick, about 80 miles south of Savannah.

South Korea’s foreign ministry said Sunday that the Hyundai Glovis cargo ship Golden Ray, which was transporting automobiles, had begun listing and then capsized.

It was unclear how many vehicles were being shipped.