FREEPORT, N.Y. (AP) — At least a dozen law enforcement authorities have descended on a Long Island marsh where the FBI's gang task force has found apparent human remains nearly a week after the body of a 16-year-old boy was found in a neighboring community.

Authorities set up two blue tents Wednesday at the nature preserve along the Great South Bay in Freeport, New York. Some investigators wore white coveralls.

On Oct. 19, investigators acting on a tip from federal Homeland Security Investigations discovered the body of 16-year-old Angel Soler in woodlands in Roosevelt. He had been reported missing in July.

Authorities have not commented on whether either case is linked to the MS-13 street gang, which is blamed for 22 killings on Long Island since January 2016.