Woman fatally stabbed after fight on Brooklyn subway platform

One woman stabbed another to death after a fight on a Brooklyn subway platform Monday night, cops said.

The two women were arguing at about 9:15 p.m. on a Manhattan-bound No. 3 subway train. When the train reached the Sutter Ave. stop in Brownsville, both of them got off.

The argument continued as the women headed to the station’s mezzanine level, police sources said.

Victim stabbed in the neck, face and arm

The victim, 30, tried to use pepper spray on the other woman.

Then the suspect pulled out a small knife and stabbed the victim in the neck, face and arm, sources said.

Medics rushed the woman to Brookdale Hospital, where she died just before 10:15 p.m., sources said.

Police were still looking for the stabber early Tuesday. She was described as a black woman in her 20s wearing a white shirt and blue jeans.

Cops couldn’t say if the two women knew each other before the stabbing.