The Cumberland County Sheriff’s Office said a single-car crash in Naples killed a 17-year-old Massachusetts boy and injured his 15-year-old brother. The crash occurred about 11 p.m. Friday. Sheriff’s officials said the car failed to negotiate a curve on Harrison Road and struck a tree at high speed. Officials said the driver, Joshua Bonnell of Haverhill, was pronounced dead at the scene. He was not wearing a seatbelt. His younger brother, Austin, was partially ejected from the vehicle and had to be extricated. He suffered two broken legs and a concussion. The crash remains under investigation. Sheriff’s officials say a preliminary investigation has found that speed, not alcohol, was a factor in the crash. (AP)