Police say they are looking for a white pickup truck.By Shelby Cassesse

PITTSBURGH (KDKA) – Penn Avenue between 35th Street and 40th Street was closed for a period of time Sunday night as Pittsburgh Police’s fire investigation unit and the bomb squad investigated what they described as an “incendiary” device.

They say the device was thrown from a moving vehicle and a parked car was damaged when it was thrown.

Police say they are looking for a white pickup truck. The incident occurred just after 9:00 p.m.

Police also investigated reports of an explosion in the 200 block of Dinwiddie Street in the Hill District just after 10:00 p.m. On Monday, police said the second explosion was caused by a firework

Police said they believe the incidents are not related.

Shelby Cassesse