According to the California Highway Patrol, a red Mitsubishi sedan and an unknown car were involved in the collision. One of the cars was facing the wrong way after the incident.

Rialto, CA – One person was severely injured in a DUI collision that happened early Sunday morning on the 210 Freeway in Rialto, the California Highway Patrol reported.
The incident occurred around 12:32 a.m., May 10, on the eastbound 210 Freeway at the Alder Avenue off-ramp.
According to the California Highway Patrol, a red Mitsubishi sedan and an unknown car were involved in the collision. One of the cars was facing the wrong way after the incident.
Firefighters responded to the scene and blocked some traffic lanes.
At least one person sustained major injuries in the crash. The party was cited for DUI and transported to Arrowhead Regional Medical Center for treatment.
CHP officers are collecting more information to establish the cause of the crash.
