A motorcyclist was killed Thursday evening, September 17, 2026, after a collision with a truck on northbound State Route 14 near the Sierra Highway off-ramp in Acton. The crash was reported around 6:15 p.m. and prompted California Highway Patrol officers, along with Los Angeles County Fire Department personnel, to respond to the scene. The motorcyclist was pronounced dead at the scene; no other injuries have been reported. The collision closed two lanes of the freeway and triggered a SigAlert, backing up traffic for hours before all lanes reopened around 9:20 p.m. The cause of the crash remains under investigation.
According to MyNewsLA, the motorcycle collided with a truck on the northbound Antelope Valley Freeway just north of Sierra Highway, and the rider died at the scene. The outlet reported that CHP officers were still working to determine what led to the collision as of Thursday night. No names have been released by authorities, and the truck driver’s condition has not been publicly disclosed. Anyone who witnessed the crash is encouraged to contact CHP’s Antelope Valley office.
