HAGERSTOWN, Md. (AP) — Police followed a trail of shell casings and watched home security video Thursday to trace a rush-hour shootout between two vehicles that careened through at least eight blocks of densely packed homes.

Investigators had no one in custody but said they recovered two guns near a Dodge Grand Caravan that was abandoned by its three male occupants after it crashed into a guard rail with its rear window shot out. The pursuing car, a dark Chevrolet sedan with at least two occupants, disappeared in traffic shortly after 5 p.m. Wednesday, Capt. Paul Kifer said.