A person was killed during a vehicle crash Sunday morning on the San Bernardino (10) Freeway in Rosemead, authorities said.

The crash occurred about 5:55 a.m. on the eastbound freeway, just west of Rosemead Boulevard, the California Highway Patrol reported.

With details still sketchy, authorities said a person may have been struck by a vehicle on the freeway.

There was no other immediate information available.

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