Big Apple bloodshed left two people shot and two others hurt in separate incidents across the city overnight.

A man in his 30s walked into Brookdale Hospital in Brooklyn with a gunshot wound to his chest shortly before 5:30 a.m. Saturday, the NYPD said.

The victim, who suffered non-life-threatening injuries, was shot on the corner of Rockaway Parkway and Church Avenue, police said. He did not explain how he got shot, authorities said. There have been no arrests.

Around 10:30 p.m. Friday, a 38-year-old man was shot in the left foot during an altercation on Third Avenue, near East 118th Street in East Harlem, cops said. The victim was taken to Mount Sinai Hospital with non-life-threatening injuries, police said. There have been no arrests.

Separately, two men were hurt during a stabbing in the Times Square subway station early Saturday.

One man was arrested after allegedly stabbing a 23-year-old victim in the torso and leg during a melee in the station, cops said. The 22-year-old suspect, whom police described as the “aggressor,” had a slash wound to the head which may have been self-inflicted.