New York forensic experts will start a major new search Monday through debris from the World Trade Center for remains of people killed in the 9/11 terrorist attack, officials said.

About 844 cubic yards (645 cubic meters) of material recovered from the reconstruction site at Ground Zero will be combed for bones and other remains of the 2,752 people killed when hijacked airliners slammed into the Twin Towers on September 11, 2001.

"That material is going to be sifted to see if there are any human remains," said Jason Post, a spokesman for Mayor Michael Bloomberg. "We're taking every step we can to recover the remains of 9/11 victims."

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