A "very chaotic" scene developed early Sunday as "multiple people" were shot during an all-night art event in New Jersey's capital city.

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Shooting broke out at an all-night art festival in Trenton, New Jersey, early Sunday, sending people stampeding from the scene and leaving one suspect dead and 22 people injured, a local prosecutor said.

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WATCH: Police say at a press conference 1 person was killed — identified as one of the suspected gunmen — and 20 others were treated for a variety of injuries.



Mercer County Prosecutor Angelo Onofri told a news conference Sunday that 16 of the 20 injured were treated for gunshot wounds. Four of those, including a 13-year-old boy, were in critical condition.

He said that two suspects opened fire during the Art All Night festival that showcases local art, music and food. One of the suspects, a 33-year-old man, was killed.

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Authorities say that about 1,000 people were in the area when the shooting started.

WATCH: New Jersey police say art festival shooting was result of earlier fights between local gangs

Angelo Nicolo told Philadelphia 6ABC TV that he and his brother were at the event when they heard loud popping sounds. He said people started running down the street.

“I saw two police officers escort a guy that got shot in the leg. They bandaged him up and whisked him away,” Nicolo said

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WATCH: Witnesses react to New Jersey art festival shooting.



Local television stations showed numerous police vehicles at the scene. The Trentonian said that the venue for the festival was strewn with broken glass and other debris. The event began Saturday afternoon and was scheduled to conclude Sunday afternoon.

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