SAN FRANCISCO, July 28 (Xinhua) -- A shooting incident caused multiple casualties on Sunday at a nationally known food festival in Northern California, local police said.

"The hearts of Gilroy PD (Police Department) and entire community go out to the victims of today's shooting at the Garlic Festival," the local police department tweeted, adding that "the scene is still active."

Few details are available now, but according to NBC News, at least 11 people were "down" in the incident.