Assistant Superintendent Audley Peters said a group of men were standing in front of a home on Rosewood Street, when an occupant of a back vehicle opened fire.
One of the victims died on the scene, two others were transported to hospital.
The incident took place around 3 p.m.
Peters said police were unsure whether the shooting is connected to another fatal shooting that occurred hours earlier.
According to police reports, a man died in hospital shortly after he was shot at Melthorn Street.
Police are appealing to the public for assistance in both matters.