HORSEHEADS, N.Y. (WHCU) — State Police have reopened South Main Street in Horseheads, but a residence and adjacent parking lot both remain closed. 

Investigators searched the apartment Sunday of a Horseheads man, who’s charged with criminal possession of a weapon. Troopers say hazardous and suspicious material were found, but they have not disclosed what was discovered.

43-year-old Michael Hilliard is accused of leaving a possible explosive device, which was found a week ago Monday. He was arrested Saturday in Newfield while driving a U-Haul truck. It’s unclear what was in the truck or where he was headed.