The incident was reported on 62nd Street just after 8 p.m.
A 42-year-old man was shot in the leg, a 37-year-old man was shot in the arm and a 24-year-old man was shot in the abdomen and leg. All three were taken to NYU Langone Hospital-Brooklyn.
The fourth victim, a 23-year-old woman, walked into Maimonides Medical Center with a gunshot wound to her leg.
It is currently unknown what led to the shooting.
No arrests have been made and the investigation is ongoing.
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