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A car drove through a Newhall vaccine clinic Saturday, knocking over displays and injuring a worker, according to the Los Angeles County Sheriff’s Department.

The car began knocking over signs and cones at the vaccine clinic in the 22900 block of Market Street shortly after 4:30 p.m., according to the Santa Clarita Valley Sheriff’s Station.

The vehicle, believed to be a dark gray sedan, also intentionally struck a clinic worker using the car’s side mirror, police said. The clinic worker suffered minor injuries and was not transported to the hospital.

Deputies have not yet determined a specific motive or established any verbal exchanges between the driver of the car and the clinic workers.

The driver fled the scene after striking the worker, according to police.

The investigation is ongoing, and police are treating it as a case of assault with a deadly weapon.