At least three people are dead and at least 15 are injured after a gunman opened fire at the Gilroy Garlic Festival in Northern California on Sunday evening (US time).

Videos posted on social media appear to show festival attendees fleeing and screaming. At least one loud popping sound is distinguishable in the background.

The gunman has been shot dead by police.

Some witnesses have reported a potential second suspect, but authorities have not confirmed if an accomplice was engaged in the shooting.

Initial reports claimed 11 people were gunned down after shots rang out at the annual three-day food festival.



Police responded to the scene around 5:30pm. Authorities confirmed the scene was still active as of 7:45pm (US time).

US President Donald Trump tweeted his support after being briefed on the event.

