SAN FRANCISCO (CBS SF) — San Francisco police say at least one police officer and multiple skateboarders were injured at Dolores Park on Tuesday evening.

San Francisco police spokeswoman Grace Gatpandan said via Twitter around 9 p.m. that one police officer was injured and that officers “were taking projectiles from the crowd.”

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Videos posted to social media shortly before 8 p.m. show a confrontation between police and skateboarders at the park, located at 19th and Dolores Streets.

Gatpandan said one officer was injured and transported to the hospital. She also said that “ambulances were called for skateboarders who lost control while riding.”

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Videos taken at the park and posted to social media on Tuesday evening show a large crowd gathered at the park.

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Many videos and photos from Dolores Park show a large police presence at the park.

Gatpandan said two San Francisco police patrol vehicle were vandalized as well.

Other videos showed skateboarders riding down the Dolores Street hill.

The extent and cause of the injuries suffered by people at the park was not immediately clear.

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By Hannah Albarazi – Follow her on Twitter: @hannahalbarazi.