Police say a Worcester school bus was hit by a BB from a pellet gun, with no apparent injuries. Police told the Telegram & Gazette that a 10-year-old boy sitting next to the window that was struck said he felt something strike the side of his head, but paramedics did not find any injury. School safety liaison Robert Pezella said the elementary school bus was carrying 18 students. He said the students were frightened, and parents came to pick them up. Police said a witness told officers a man pointed an object at the bus, and the window shattered. The man reportedly ran away.