Sig Alert, 15 Freeway, Devore 3:53 a.m.

A semi truck crashed into a vehicle that was stopped in the truck lane on the northbound 15 Freeway at Glen Helen Road at 3:53 a.m. The CHP initially shut down the fast lane on the northbound side and two southbound lanes. The northbound 15 has since been reopened, but the two southbound lanes remain closed. One person in the stopped vehicle was flown to Arrowhead Regional Medical Center for treatment. The semi, which smashed through the center divider, scattered concrete debris and diesel fuel across lanes. Crews remained on scene for cleanup. UPDATE: Lanes were reopened at 6:22 a.m.