Sgt. Bob Boese of the Los Angeles County Sheriff’s Department said early Sunday that the shooting occurred at a business on Garvey Ave in Monterey Park. The shooter is a male, Boese said.

Earlier in the day, thousands of people attended the annual festival.

Seung Won Choi, who owns the Clam House seafood barbecue restaurant across the street from where the shooting happened, told the Los Angles Times that three people rushed into his business and told him to lock the door.

The people also told Choi that there was a shooter with a machine gun who had multiple rounds of ammunition on him so he could reload. Choi said he believes the shooting took place at a dance club.

The newspaper reported that the shooting happened after 10 p.m.

Saturday was the start of the two-day festival, which is one of the largest Lunar New Year events in Southern California.