San Pablo, California — Authorities are investigating a multi-vehicle collision that disrupted traffic and left at least one person injured Tuesday evening on the eastbound lanes of Interstate 80 near San Pablo Dam Road, according to the California Highway Patrol (CHP).

The crash occurred at approximately 5:06 p.m., a busy time for commuters traveling through the area. CHP officers responding to the scene discovered four vehicles involved in the collision. Emergency crews worked quickly to assess the situation, provide medical aid, and clear the roadway to restore traffic flow.

According to initial reports, the injuries sustained in the crash were described as minor. At least one individual was treated at the scene, though it remains unclear whether anyone required transport to a nearby hospital. Authorities have not released information regarding the identities of those involved.

At this time, the exact circumstances leading up to the collision have not been determined. Investigators are working to establish what caused the crash, including whether speed, traffic congestion, lane changes, or other contributing factors played a role. As is standard procedure, CHP officers will review evidence from the scene, vehicle positions, and any available witness statements.

Traffic in the area experienced temporary delays as lanes were partially blocked during the investigation and cleanup. Motorists were advised to use caution and consider alternate routes while crews worked to safely manage the scene.

No further details have been released regarding potential citations or contributing conditions. The investigation remains ongoing, and additional information may be provided as it becomes available.

The incident serves as a reminder of the importance of staying alert during peak travel hours, especially on heavily traveled freeways like Interstate 80. Authorities continue to urge drivers to maintain safe speeds, allow adequate following distance, and remain attentive to changing traffic conditions.