A woman was fatally stabbed in the Bronx and two people were shot in separate incidents in Queens and Brooklyn overnight, police said.

In the deadly incident, responding cops found a 39-year-old woman stabbed multiple times in the torso on White Plains Road and East 220th Street shortly at 9:30 p.m. Friday, police said. EMS took the victim to Jacobi Medical Center, where she was pronounced dead.

There were no arrests.

In Brooklyn, a 29-year-old man was shot in the buttocks on Saratoga Avenue and Park Place in Brownsville shortly after 12:30 a.m. Saturday, police said.

EMS brought the victim to Brookdale Hospital in stable condition, cops said.

There were no arrests.

In Queens, a 41-year-old man was shot in the hand during a robbery at Borough Place and 50th Avenue at around 4:10 a.m. Saturday, police said.

He was taken to Elmhurst Hospital in stable condition, cops said.

Separately, two men were arrested in connection with last month’s stabbing death of a woman on Staten Island, the NYPD said Saturday.

Roberto Martinez, 25, was charged with murder, and Javier Martinez, 23, was hit with a charge of hindering prosecution, police said.

The victim, Evelin Barajas Perez, 23, was found stabbed to death inside her Mariners Harbor home after she had been fighting with her boyfriend just after 10 p.m. June 21, police said. 

Perez was arguing with her beau inside the multi-family home on Van Name Avenue near Forest Avenue when a friend heard the commotion and called 911 for a wellness check, police said. 

Responding police found Barajas Perez with multiple stab wounds to her body, authorities said. 

She was pronounced dead at the scene.