A 37-year-old man was slashed in the face on a northbound R train Sunday night after getting into a verbal dispute with another man, police said.
Authorities said that shortly before midnight on Aug. 6, the victim and the yet-to-be identified suspect were onboard the train as it passed through Sunset Park.
According to a preliminary NYPD investigation, a verbal argument between the men became physical when the suspect pulled out a screw driver and slashed the 37-year-old straphanger in the face.
The victim disembarked the train at 25th Street subway stop and reported the incident to police.
Cops said the suspect stayed on the northbound R train and got off at an unknown stop. The investigation is ongoing.
The victim was treated for his injuries at an area hospital.