Police are searching for a suspect who stabbed a woman on the No. 3 train Friday night.
Officers say a 23-year-old woman was riding the train as it entered Nostrand Avenue.
As the doors opened, police say a man slashed her in the face and arm with a knife or some kind of sharp weapon.
The suspect ran away and the victim was taken to the hospital.
Police say the suspect is about 5 feet, 11 inches tall and weighs around 170 pounds.