CORONA: Four car crash slows traffic on Highway 91 (UPDATE)

CORONA: Four car crash slows traffic on Highway 91 (UPDATE)
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A SigAlert was triggered � Tuesday, Sept. 1, for westbound Highway 91 in Corona after four cars crashed.
The SigAlert was issued at 11:39 a.m. Tuesday, about 20 minutes after the crash occurred east of Maple Street, according to a California Highway Patrol incident log.
Corona Fire Department firefighters were dispatched to the scene, where multiple cars were reported blocking lanes.
By 12:30 p.m., all lanes were open, and traffic was beginning to free up.
Hours earlier, a seven-car crash slowed traffic in the same area.
Story is developing, check back for more information.