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.”

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.

Large police presence to Dolores Park due to injured officer & request for crowd control; #SFPD officers were taking projectiles from crowd. — Ofc. Grace Gatpandan (@OfficerGrace) July 12, 2017

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.”

Read Also: Angry Fallout Over Skaterboarder-Cop Collision At Dolores Park

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

Dolores Park tuesdays – guy smashes police car window with a skateboard, police shooting beanbags pic.twitter.com/oIMbog9g2e — Lance Martin (@RLanceMartin) July 12, 2017

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.

Police drove into a skateboarder while trying to block the hill at Dolores Park pic.twitter.com/Mg3eU67PhC — Barry O'Reilly (@barryoreilly) July 12, 2017

Other videos showed skateboarders riding down the Dolores Street hill.

Crazy skateboarding scene at Dolores Park right now https://t.co/gUbnRGncbP — Ev Williams (@ev) July 12, 2017

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

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