Three people were shot Saturday during a San Francisco gay pride event, the San Francisco Chronicle reported.

Multiple gunshots were fired about 11:30PM in the city's predominantly-gay Castro district as Pink Saturday kicked off the city's 40th annual gay pride weekend.

Eyewitnesses say they heard 5 or 6 gunshots, which resulted in three young people being injured.

A 19-year-old man who was shot in the torso was transported to a local hospital with life-threatening injuries. Also injured were a 27-year-old male and a 19-year-old female, both of whom were shot in the leg.

Police say they took a 19-year-old male into custody and recovered the handgun allegedly used in the shooting.

At this point, police say the shooting was not connected to the festivities.

An unidentified eyewitness talking to local San Francisco CBS affiliate KPIX called the scene “mayhem.”

“I saw some guys down the block,” the witness said. “One guy was complaining that he got jumped or something; he got his stuff stolen. He got all his buddies and they started coming back over to the Chevron.”

“And these 20 cops they kinda dispersed looking for whoever, I'm assuming. … I heard the shots and just ran.”

“People just started throwing bottles after it happened. Some girl that got shot over here, her friend that was holding her after she got shot got hit in the face with a bottle.”

“I think the one guy who got shot more than once died. He looked dead to me. I mean, the way they handled his body after; it just didn't look good, so.”

The eyewitness said the police had it “locked down”within “a minute or so.”

Thousands are expected to attend the city's 40th annual gay pride parade Sunday.

UPDATE: One of the shooting victims has died.