Pomona police responded to the crash near Old Pomona Road shortly before midnight, when officers said a vehicle was traveling northbound on State Route 71 at high speeds, lost control and crashed with a vehicle heading south on the 71, authorities stated in a press release.
One person in the vehicle traveling north was killed and a second occupant suffered serious injuries, police said. Two people in a second car suffered moderate injuries, while a third had serious injuries, according to Pomona PD.
All lanes at Mission Boulevard were reopened at 7 a.m., according to the California Highway Patrol, as officers investigated the collision.
SIGALERT UPDATE IN POMONA: SB SR-71 AT MISSION BLVD., ALL LANES BLOCKED UNTIL 0700 HOURS DUE TO A COLLISION— CHP PIO - LA County (@CHPsouthern) September 3, 2016
Police were working to identify the person killed and the cause of the crash. Anyone with information was encouraged to contact the Pomona Police Department.