Transcript for Police SUV seen plowing through crowd in Tacoma, Washington
We turn to a disturbing story out of Tacoma, Washington. A police SUV plowing through a crowd of people surrounding his vehicle. The officer driving over and injuring at least one people. Authoriies saying that officer was fear for his safety. A warning, this video is graphic. Here's elwyn Lopez. Reporter: Tonight, this horrifying moment in Tacoma, Washington, now under investigation. Social media videos showing a Tacoma police officer plowing through a crowd of Oh, my god! Reporter: No one dying at the scene, but at least one person was run over. He had tire marks all over his body, belly out, his shoes were off. I honestly -- it was like something out of a movie. Reporter: Tonight, that man still in the hospital. Police say they were trying to clear a downtown intersection Saturday night. As many as 100 people watching what they called a street sideshow. I would say at least ten different cars taking turns, like, going into the intersection and doing the donuts. Reporter: When a cop showed up, the crowd moved in. Police say people hit the cruiser and its windows, here you can see the driver trying to back up, then accelerating forward. He hit a pretty big -- I want to say a group of 20 people. Reporter: The police department says the officer feared for his safety, adding that while trying to extricate himself from an unsafe position, drove forward, then stopped and called for medical aid. Tacoma's interim police chief is classifying this incident as use of deadly force. We don't know the extent of the injuries for the man still hospitalized tonight. Tom? Elwyn, thank you. Next tonight, tracking a triple threat of winter.
This transcript has been automatically generated and may not be 100% accurate.