The bodies of two people have been recovered from a red pickup truck, which was under water where the Baltimore bridge collapsed, the BBC reports.
Eight construction workers were on the bridge when a ship struck it, plunging them into the waters below.
Two of the workers were rescued on the day, but the search continues for the other four – all presumed dead.
Salvage crews are working to address hazardous materials and accident investigators are on the scene.
Four of the six victims of the bridge collapse have been named so far.
At a press conference on Wednesday, Maryland State Police identified Alejandro Hernandez Fuentes, 35, and Dorlian Ronial Castillo Cabrera, 26, as the two workers recovered by divers from inside the truck. Mr Fuentes is originally from Mexico and Mr Cabrera is from Guatemala.
Two other missing victims, who are presumed dead, have also been named: Miguel Luna, originally from El Salvador, and Maynor Suazo Sandoval, a Honduran citizen.
