An employee at a Bay Ridge grocery store was caught in the crossfire of a gunfight that left four men injured early Saturday, police sources said.

The 28-year-old worker was shot in the chin around 4 a.m. inside M&S Mini Market on Third Avenue near 73rd Street in Brooklyn.

The gunfire erupted after a group of men who were fighting stormed out of the bar across the street, Catch 22.

Three men dressed in black shirts and white masks then headed to the grocery store, where at least one of them started firing away, cops said.

Besides the worker, three other men — ages 46, 44 and 33 — suffered non-fatal gunshot wounds.

The three suspects fled, and no arrests have been made.

The victims were taken to Lutheran Hospital in stable condition.

Gun violence is exceedingly rare in Bay Ridge and its surrounding communities. Before Saturday, two shootings were reported all year in the 68th Precinct, which
patrols Bay Ridge.