Surveillance video has been released from the incident, which happened Tuesday evening on East 163rd Street in Longwood.
Police say gunfire erupted after a verbal dispute.
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A 31-year-old male victim was shot in the leg and is now hospitalized in critical condition.
The suspect shown in the surveillance video is described as a dark-skinned male approximately 29 years old, 5'10" tall, 160lbs.
He was last seen wearing a red sweatshirt, red sweatpants, black jacket, dark colored sneakers and a dark blue baseball cap.
Police are asking for the public's help locating him.
Call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782). You can also submit tips by visiting the CrimeStoppers website at crimestoppers.nypdonline.org or by messaging on Twitter @NYPDTips.
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