PROVIDENCE, R.I. (AP) — The FBI has recovered human remains behind a mill building in Providence.

Investigators say the remains were buried in the back of the property at 715 Branch Avenue.

Special Agent in Charge Harold Shaw said the remains were turned over to the Rhode Island Office of the State Medical Examiners for testing and DNA analysis.

He said the FBI has been in contact with regional law enforcement partners about unresolved cases and disappearances.

Federal investigators said they will remain on the scene until they've completed processing the location where the remains were found.

The digging was going on behind a building that was raided by federal investigators for an illegal pot growing operation. Agents recovered about 1,400 pot plants, cash and a gun during the August raid.

It's not clear if the cases are related.