

A melee outside a Brooklyn baby shower ended with four people shot Sunday night, police said.

The skirmish occurred outside Remsen Hall in East Flatbush at 8:30 p.m. when about 20 shots were fired, prompting passers-by to dart into the catering hall to escape the gunfire, according to police and witnesses.

One man was struck in the chest, another in the leg, a third in the shoulder, and a woman was hit in the arm, according to police. They were all taken to Kings County Hospital and listed in stable condition.

The four victims had been inside the catering hall before the bullets started flying, cops said.