Woman Killed, 32 Others Injured After Semi-Truck Crossed Divider on Major California Highway

**Fatal Collision on California’s 210 Freeway Declared Mass Casualty Incident**

Emergency services in California are dealing with the aftermath of a serious collision on the 210 Freeway in Irwindale, which resulted in one fatality and left numerous others injured. The incident occurred on the morning of June 20, 2026, when a semi-truck crossed the median and caused chaos on the westbound lanes.

At approximately 8:55 a.m. local time, the truck breached the centre divider, moving from the eastbound to the westbound side of the freeway. The California Highway Patrol (CHP) reported that at least three vehicles were involved in the crash, highlighting the serious nature of the situation.

According to information released by the Los Angeles County Fire Department (LACFD), emergency workers found one adult woman deceased at the scene. Her identity has not yet been disclosed. In total, 32 individuals sustained injuries ranging from critical to minor; ten of them were hospitalized, including two in critical condition and six minors. The remaining 22 people opted to decline hospitalisation despite reporting minor injuries.

In light of the number of casualties, the incident was classified as a “mass casualty” scenario, prompting a significant response from local emergency services. Footage and images shared on social media platforms depicted a substantial Target-branded truck leaning against the highway barrier, with a white van visibly crashed into its side.

A representative for Target confirmed that the truck involved in the accident was operated by a third-party carrier and emphasised that the driver was not an employee of the company. The spokesperson expressed condolences for those affected by the tragic accident and stated that the corporation was cooperating with local authorities regarding the ongoing investigation.

California Highway Patrol officials have yet to determine the cause of the crash, an inquiry that remains active as investigators continue to gather evidence. This incident has prompted the CHP to close multiple lanes of the freeway, significantly disrupting traffic and leading to lengthy delays for motorists in the vicinity.

Eyewitnesses reported hearing loud crashes and felt the immediate shockwave as the vehicles collided. The scene was described as chaotic, with emergency responders working swiftly to provide aid and assess the situation.

This tragic event underscores the dangers presented by heavy vehicles on busy motorways, highlighting the critical need for stringent safety measures and awareness among drivers. With investigations underway, authorities are evaluating various factors that could have played a role in the accident, aiming to ensure such a devastating event does not recur.

Further updates on the victims and the progression of the investigation are expected to be released as law enforcement officials continue their work. Residents and motorists alike are advised to remain cautious when travelling, particularly in high-traffic areas known for heavy freight movement.