Federal, state and local agencies are working to stabilize the Golden Ray cargo ship so that the search for four missing crew members can continue.
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Federal, state and local agencies are working to stabilize the Golden Ray cargo ship so that the search for four missing crew members can continue.

The U.S. Coast Guard says rescuers are still searching for the remaining four crew members of a cargo ship that overturned near St. Simons Island Sunday.

Twenty people have already been rescued.

MORE: Cargo Ship Overturns Off Coast Of Saint Simons Island

The remaining crew members of the Golden Ray Cargo ship, who are South Korean, are still trapped on the vessel.

CNN reports that the crew members are trapped in the engine room.

Coast Guard Capt. John Reed says a fire on the ship slowed recovery efforts. 

“As smoke and flames began to appear, our crews along with the Glynn County heavy rescue team assessed that the situation was too risky to further go inside the vessel.”

Federal, state and local agencies are working to stabilize the ship so that the search may continue.

Officials say no pollution was released because of the incident, although a contingency plan is in effect.  

The Port of Brunswick is currently closed to vessel traffic, with an emergency safety zone set up  in St. Simons Sound.

The cause of the accident is still under investigation.