Updated: Sunday, 28 June 2015 3:25 a.m. EDT
A shooting at a Pride event at the United Nations Plaza in downtown San Francisco Saturday evening has left at least one person injured.
Police confirmed to Mashable shots were fired at the event. A bullet hit a 64-year-old male bystander in the arm, who has since been taken to San Francisco General Hospital.
Scene of alleged 217(shooting) at UN Plaza in #sf during #SFPride2015 pic.twitter.com/MWbfxgG1eo— DB (@BoyerDina) June 28, 2015
Officer Carlos Manfredi said several people were detained for questioning after the shooting occurred around 6 p.m. Saturday.
A video from the festivities posted to YouTube shows people running in confusion from the United Nations Plaza after shots were fired, followed by a heavy police response.
UPDATE: One person hospitalized after shooting at San Francisco's Civic Center/UN Plaza this afternoon. http://t.co/PgeC0q3XPv— ABC7 News (@abc7newsBayArea) June 28, 2015
A second video from the event shared on social media appears to show four people arguing before four shots ring out.
A video posted by ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀Doing It L I V E (@bonni300) on Jun 27, 2015 at 6:37pm PDT
Manfredi said the argument had nothing to do with the Pride event.
#Breaking Four shots fired at SF Gay Pride event related to fight between two groups, apparently not anti-gay violence. One injured.— CBS Los Angeles (@CBSLA) June 28, 2015
#UPDATE: Incident started when groups of men, unrelated to PRIDE event, got in verbal argument near or inside the http://t.co/LLRrKyadOt— NBC Bay Area (@nbcbayarea) June 28, 2015
Shooting directly outside #bevaragecommand #SFPride pic.twitter.com/mRPCDx7FDD— Jesse Badger (@jtbadger) June 28, 2015
Just heard 4 gunshot sounds coming near 8th and Mart in #SFPride #sf— Darius S (@DesignerDarius) June 28, 2015
This is not the first time a shooting has occurred at Pride events in the California city, which has a rich history of support for gay rights. In 2014, a shooting in San Francisco's South of Market neighborhood during Pride left a 22-year-old woman injured and three arrested.
The incident came amid a particularly poignant Pride gathering Saturday, which followed Friday's Supreme Court decision to legalize gay marriage across the United States.
Additional reporting by The Associated Press.