Police say a 30-year-old man was stabbed overnight on a Q train in Prospect Heights.
The train was pulling into the 7th Avenue train station when the man and another person got into an argument, police say.
The argument turned physical, and the man was stabbed in his chest and left arm.
He was taken to the hospital and is expected to be OK.
Police are searching for the person who stabbed the man. They say he was wearing a gray sweatshirt and black pants.