NEW YORK (AP) - Investigators have finished ripping up the concrete floor of the New York City basement where they are searching for traces of a 6-year-old boy who vanished in 1979.
So far, authorities haven't given any outward sign that they've found anything.
FBI agents and police have been excavating for three days in a hunt for any remains of Etan Patz.
FBI spokesman Tim Flannelly said Saturday that all the concrete flooring had been removed.
He said the next step is digging in the dirt beneath the floor.
Etan was on his way to school 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.