Two men were killed and another injured following unrelated shootings in Brooklyn and the Bronx Tuesday night, cops said.

The violence began in Bedford-Stuyvesant at around 6:30 pm on Hull Street and Thomas S. Boyland Street, where a 32-year-old was shot in the groin, and died from his injuries,according to police.

Another man, also 32, was shot in the stomach and taken to Brookdale Hospital, where he is expected to survive.

Less than three hours later, just before 9 pm, two men were arguing on E. 163rd Street and Southern Blvd in Hunts Point when one of them, a 26-year-old slashed a 63-year-old on the arm.

The older man then shot the younger man in the head, killing him, cops said.

The shooter was taken to Lincoln Medical Center for his injuries, and placed in police custody. Officials are still investigating the relationship between the men, and what triggered the squabble.