In this 1979 photo provided by the New York City Police Department shows a missing child poster for Etan Patz. New York City Police and the FBI began digging up a New York basement Thursday, April 19, 2012 for the remains of the 6-year-old boy whose 1979 disappearance on his way to school drew helped launch a missing children's movement that put kids' faces on milk cartons. (AP Photo/New York City Police Department)
NEW YORK (AP) -- Investigators continue to rip apart the basement of a building in New York City's fashionable SoHo section, looking for any trace of a 6-year-old boy who vanished in 1979.
FBI agents have been digging up the floor and removing drywall in the building for three days in a hunt for any remains of Etan Patz.
Agents and police officers were on the scene again Saturday morning.
Forensic teams have been breaking up the floor with jackhammers and passing the rubble out by hand.
Etan was on his way to his school bus stop when he disappeared. He would have passed the stairwell leading to the basement during his walk.
Authorities say they began the search after an FBI dog indicated the scent of human remains in the room.