The incident took place around 1 a.m. Sunday, Nov. 25 at Tiago's Bar and Grill, at 211 State St., said Bridgeport Police spokesman Av Harris.
Upset customers and two bullet casing were found but no suspects or victims were identified.
Police have checked hospitals in the city and the surrounding area.
Anyone with information is asked to contact the Bridgeport Police Department at 203-581-5100.
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