Gunfire broke out at a food festival in California on Sunday afternoon [local time], Al Jazeera reported. The shooting is still active according to reports.

Casualties are feared, police said.

Ambulances were seen at the spot.

Police said the scene is "still active" two hours after the incident at the annual three-day California food festival.

The video posted on social media appeared to shows the festival attendees running about in confusion with one loud popping heard in the background.

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(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)