5:50 p.m. Update:Â Officials say the crash was caused by a white van that failed to slow down to traffic, causing a chain reaction with four vehicles in front of it.
Officers said the person that died was an adult male in the fourth car in the crash. All the vehicles involved in the crash had solo occupants, CHP said.READ MORE: 2 Juveniles Arrested After Mother, Son Found Critically Injured In Elverta
There were other injuries, but it is unknown at this time if all of the injured people were transported to the hospital.
CHP is investigating the crash.
4:50 p.m. Update: CHP Officers said the crash involved five vehicles and has closed down Highway 12 at Beck for approximately two hours.READ MORE: 'Intense' Yellowjacket Activity Reported Around Sacramento Area, Vector Control Says
FAIRFIELD (CBS13) â Fairfield firefighters responded to a mass casualty incident on Highway 12 and Beck around 3:40 p.m. Wednesday.
California Highway Patrol Solano confirmed that one person has died in the crash and multiple vehicles are involved.
Drivers are being asked to avoid the area for the time being.
Traffic is being diverted off at Chadbourne Rd. Motorists are advised to expect delays and to use alternate routes to avoid the area.MORE NEWS: Dispatch Audio Describes Chilling Details of Boys' Alleged Attack On Own Mother and Brother: 'He Wants To Turn Himself In'
This is a developing story.