ST. SIMONS ISLAND, Ga. (AP) - The U.S. Coast Guard says rescuers have heard noises from inside a cargo ship where four crew members are unaccounted for after their huge vessel overturned and caught fire off Georgia's coast.

Petty Officer 3rd class Ryan Dickinson told The Associated Press on Monday that rescuers heard noises but can't confirm that they're signs of life without going inside.

The flames and smoke have prevented rescuers from safely penetrating the unstable vessel.

The Golden Ray rolled over early Sunday in St. Simons Sound as it left the Port of Brunswick with a load of cars for Baltimore.

Coast Guard Capt. John Reed said 20 people were evacuated before the fires and unstable cargo made it too risky to go inside.

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