The shooting was reported around 9:31 p.m. around the park, police said. San Francisco police responded to a call of shots fired but were not involved in the shooting.
Information on whether the officer who was involved in the shooting was injured wasn't available. The person who suffered major injuries and the person detained weren't identified.
Anyone with information on the case is asked to call police at (415) 575-4444 or text TIP411 and to begin the text with "SFPD".
A tow truck has arrived at the scene of an officer involved shooting near San Francisco’s aquatic park. The police officer says once the tow truck is done they will open up the Area - the end of Van Ness Avenue pic.twitter.com/n8AY5vyYM1— Amy Hollyfield (@amyhollyfield) October 17, 2018
San Francisco police are still on the scene of an officer involved shooting. They say a US park police officer shot someone - who was taken to the hospital with life threatening injuries. This is at the end of Van Ness near aquatic park. Crime scene will be cleared soon. pic.twitter.com/lkUhCteDp0— Amy Hollyfield (@amyhollyfield) October 17, 2018