A five-vehicle wreck on Interstate 215 in Riverside Thursday injured five people, one seriously, and forced the partial closure of the northbound side of the freeway.
The crash happened about 10:35 p.m. in the No. 1 and No. 2 lanes on northbound I-215, just north of Central Avenue, according to the California Highway Patrol.
The agency said that a box truck, pickup and three sedans impacted, though the circumstances were not immediately clear.
The HOV, fast lane and No. 2 lane were completely blocked because of the wreck, and a SigAlert was issued at 10:50 a.m. due to the ensuing traffic jam.
Riverside County Fire Department crews reached the location within 15 minutes and discovered one victim with major injuries, one with moderate injuries, and three with minor injuries, according to officials at the scene.
The three people with minor injuries were evaluated by paramedics but declined to be taken to a hospital for further treatment, according to the fire department.
The other two parties were transported to medical facilities.
As of 11:10 a.m., the northbound side of I-215 remained partially shut down, with traffic squeezed into two lanes going toward downtown Riverside.
The CHP was expected to begin reopening lanes by noon.
The cause of the chain crash was under investigation.