ALLEGHENY CO., Pa. (WPXI) — A tractor-trailer crashed into a Primanti Bros. restaurant in Allegheny County early Sunday. According to emergency responders, the crash happened around 4 a.m. at the chain’s location on Steubenville Pike (Route 60) in Crafton. Police tape surrounded the front of the restaurant — as the front lobby was severely damaged according to officials. A construction manager told our news partners at Channel 11 the 18-wheeler lost its brakes, hit the guiderail and slammed into the building. Luckily, the restaurant was closed when the crash happened. An engineer is coming in to look at the restaurant for structural purposes, but officials said Primanti’s will remain closed for now. Police are investigating the incident.