One person died Friday night in a crash on the Pomona 60 Freeway in Diamond Bar.
The multi-vehicle crash was reported to the California Highway Patrol about 9:30 p.m. on the eastbound Pomona Freeway at Grand Avenue.
Witnesses told the CHP a Dodge sedan was blocking the HOV lane, then the No. 1 lane, and that a black sedan was blocking lane 2. A witness said a motorcycle rider crashed into the back of a vehicle and the rider was thrown about 20 feet.
It was not confirmed that the deceased was the motorcycle rider.
The CHP issued a SigAlert shutting down all lanes of the eastbound Pomona Freeway west of Grand Avenue and the flyover from the northbound Orange 57 Freeway to the eastbound Pomona Freeway.