A Coast Guard rescue team was finally able to make contact Monday morning with a cargo ship off the coast of Georgia where four members are still believed to be trapped.
The Golden Ray was reported in distress around 2 a.m. Sunday after it somehow rolled on its side and caught fire with 23 crew members and a pilot on board.
Twenty of the people were rescued Sunday.
Around 11 a.m. Monday, the Coast Guard announced that salvage crews had made contact with crew members still aboard and said an extradition is planned but provided no further information.
“They heard noises, but we can’t confirm that it’s signs of life,” Petty Officer 3rd class Ryan Dickinson said earlier Monday morning. “We can’t confirm that without going in and looking, but they did hear sounds.”
It’s unclear what caused the 656-foot-long, 106-foot-wide ship, which had just left Colonels Island Terminal, to flip and catch fire.
Related: El Faro cargo ship sinks
El Faro cargo ship sinks
El Faro cargo ship sinks
El Faro, provided by TOTE Maritime Services
ROCKLAND, ME - OCTOBER 5: John Gerry, a cousin of Dylan Meklin, is overcome with emotion after a candlelight vigil in honor of Meklin at the Fishermen's Memorial in Rockland Harbor Monday, October 5, 2015. Meklin, along with three other Mainers and 29 other souls, were aboard El Faro, a cargo ship which is believe to have sunk in the path of Hurricane Joaquin. 'I played football with him and everything,' said Gerry. (Photo by Gabe Souza/Portland Press Herald via Getty Images)
ROCKLAND, ME - OCTOBER 5: A candlelight vigil was held at the Fishermen's Memorial in Rockland Harbor for Dylan Meklin, 23, of Rockland, and Danielle Randolph, 34, also of Rockland, Monday, October 5, 2015. The pair are among four Mainers and 29 other souls who were aboard El Faro, a cargo ship which is believe to have sunk in the path of Hurricane Joaquin. (Photo by Gabe Souza/Portland Press Herald via Getty Images)
CASTINE, ME - OCTOBER 6: Travis Emerson, right, comforts Alexi Galley after a vigil for the crew members of the cargo ship El Faro, which is believed to have sunk off the Bahamas during Hurricane Joaquin. Four of the ship's crew, Capt. Michael Davidson of Windham, Michael Holland of Wilton, Danielle Randolph of Rockland and Dylan Meklin, both of Rockland, are all graduates of Maine Maritime Academy. (Photo by Gregory Rec/Portland Press Herald via Getty Images)
U.S.C.G. Cpt. Mark Fedor, right, and Lt. Cmd. Gabe Somma brief the media on the search for survivors of the cargo ship El Faro that sank during Hurricane Joaquin at the Coast Guard Station at the Opa Locka Airport on Monday, Oct. 5, 2015. (Walter Michot/Miami Herald/TNS via Getty Images)
OPA LOCKA, FL - OCTOBER 05: U.S. Coast Guard Captain Mark Fedor (L) and Lt. Commander Gabe Somma walk away after speaking to the media, at U.S. Coast Guard Station Miami, about the sinking of the 790-foot container ship El Faro on October 5, 2015 in Opa Locka, Florida. The Coast Guard has concluded that the ship most likely sank after encountering Hurricane Joaquin last Thursday, but Coast Guard cutters and aircraft and a U.S. Navy plane continued searching for the 33 missing crew members. (Photo by Joe Raedle/Getty Images)
#BreakingNews @USCGSoutheast C-130 just lands, reports 225 SqMi debris field of styrofoam, wood, cargo, other items. http://t.co/4us2EP4L4C
#BreakingNews: @USCGSoutheast MH-60 refueling at sea as search crews cover 70K+ sqNM in the search for 790' #ElFaro http://t.co/6ICMmxraO2
#BreakingNews @USCGSoutheast Video Release: Recovery of #ElFaro life ring. http://t.co/X0RfPsheTM
#BreakingNews: @USCGSoutheast search for #ElFaro has covered more than 30K sqNM. http://t.co/hBlBWAl0GK http://t.co/9H4PVf4wyM
#BreakingNews @USCGSoutheast aircrew searching IVO #hurricane #Joaquin for container ship w/ crew of 33. http://t.co/cpEfzRi5G1
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Several Coast Guard units, the Marine Safety Unit Savannah and the Salvage Engineering Response Team are assisting in the search for the missing crew members.
Dickinson said Sunday that no fuel spillage from the Golden Ray has been seen so far, but that officials are still wary.
“There are a lot of moving parts and a lot of people working to make sure we can get on there safely and also to monitor for pollution, to ensure there are no hazards to the public or the environment," he said. “It’s all kind of step by step."