PROVIDENCE, RI (CBS) – The FBI has recovered human remains buried behind an old Providence, Rhode Island mill.

The FBI was digging behind the property at 715 Branch Ave. for the remains of a Boston nightclub operator with ties to the mob, sources told CBS Providence affiliate WPRI.

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FBI digs behind Providence mill (WBZ-TV)

FBI digs behind Providence mill (WBZ-TV)

“The remains were turned over to the Rhode Island Office of the State Medical Examiners for testing and DNA analysis,” the FBI said. “The FBI will remain on scene until we have completed processing the location where the remains were located.”

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WPRI reports federal investigators were searching for the remains of Steven DiSarro, 43, of Westwood, Mass. DiSarro was murdered in 1993 but his body was never recovered.

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The FBI would not release any other information.