Four people have died at a California food festival shooting, including a suspected gunman, police say.
Fifteen more were injured, including some who suffered gunshot wounds, although the number of those shot was not immediately clear.
"It's just incredibly sad and disheartening that at an event that does so much good the community had to suffer from a tragedy like this," said Smithee late on Sunday in the city of Gilroy, near San Jose.
A sniper takes aim on a house where police thought one of the shooters might have been. Source: Getty
The gunman appeared to have cut through a fence to get into the annual Garlic Festival. He may have had one accomplice, Smithee added.
Video posted on social media showed people at the event running for cover as shots rang out.
Aerial footage showed the festival grounds apparently deserted but with many emergency and police vehicles on surrounding streets and police in bullet-proof gear.
"Be careful and safe!" U.S. President Donald Trump wrote on Twitter.
Footage uploaded to social media appeared to show festival attendees scattering in fear and confusion as loud popping sounds could be heard in the background.
"What's going on?" a woman can be heard asking on one video. "Who'd shoot up a garlic festival?"
California Governor Gavin Newsom said his office was monitoring the situation closely.
Evenny Reyes, 13, told the San Jose Mercury News that at first she thought the gunfire was fireworks. But then she saw someone with a wounded leg.
"We were just leaving and we saw a guy with a bandana wrapped around his leg because he got shot," Reyes told the newspaper.
"There was a little kid hurt on the ground. People were throwing tables and cutting fences to get out."
People leave the Gilroy Garlic Festival following a shooting. Source: AAP
One video posted on Twitter showed a blood-spattered woman sitting in the back of a semi-trailer and telling a man she had been shot in the hand.
Founded in 1979, the Gilroy Garlic Festival features food, drink, live entertainment and cooking competitions.
It was being held at the outdoor Christmas Hill Park, where weapons of any kind are prohibited, according to the event's website.
