A man was killed in a multi-car crash on the San Bernardino (10) Freeway in San Dimas, authorities said Monday.

The crash was reported at 11:19 p.m. Sunday on the westbound San Bernardino Freeway at Kellogg Drive, according to California Highway Patrol Officer Patrick Kimball.

A man in his 50s was pronounced dead at the scene, Kimball said. It was not clear whether he was killed inside a vehicle or outside as a pedestrian.

No other injuries were reported.

It appeared three vehicles were involved in the crash, Kimball said.

A SigAlert was issued shutting down all lanes of the westbound 10 Freeway at Kellogg and diverting traffic off at the Orange (57) Freeway. The lanes were reopened at 2:30 a.m.

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