BRIDGEPORT, Conn. (CBSNewYork) — Five people were hurt after a shooting broke out at a Sweet 16 party in Connecticut.

Shattered glass littered the Circolo Sportivo club in Bridgeport on Saturday night after investigators said a fight broke out when uninvited guests showed up and quickly escalated to gunfire.

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Five people, including four teens, were hit.

One witness at the Triumphant Christian Church next door described the chaos.

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“I heard all this hollering and screaming through our parking lot,” witness Arthur West said. “I was in the Marine Corps, I’m a retired firefighter, you kinda know the difference between shots and firecrackers.”

A semi-automatic gun was found at the scene, CBS2 reported.

Police are now combing through surveillance video as the investigation continues.

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No arrests have been made.