An alisal high school student was struck by a van tuesday, and authorities are looking for the driver. The 17-year-old was hit as he crossed at a crosswalk on the 7-hundred block of Williams road. He was airlifted to a bay area trauma center after the 5:11 p.m. incident. The van is described as a red work van from the 90s, which was noticeably dirty at the time. The van has front-end damage. Anyone with information about the van or the driver is encouraged to contact local authorities. You can remain anonymous, by calling in tips to the We-Tip line, at 1-800-78-crime.