State Police are investigating a report of an unknown projectile striking a vehicle on Route 25 westbound in Bourne Monday night. The object hit the car as it was passing by the Bourne Bridge at about 7 p.m. The driver pulled into the State Police barracks in Bourne and was not injured, said Lieutenant Daniel Richard, a State Police spokesman. A similar incident occurred last week when a chunk of road debris flew into a car’s windshield on Interstate 93 in Wilmington Friday morning. The driver of that vehicle sustained facial injuries, State Police said.Catalina Gaitan can be reached at email@example.com. Follow her on Twitter at @catalina_gaitan.