Two men slashed in separate attacks at subway stations in Brooklyn, the Bronx

An 18-year-old victim was stabbed in the back and slashed on the neck and elbow on the northbound No. 2 train platform of the Prospect Ave. station in Longwood amid an argument with another man around 6:18 p.m., cops said.

The victim was taken to St. Barnabas Hospital and is expected to survive, cops said.

The suspect is a man in his late 30s or early 40s, according to law enforcement.

Less than an hour later, a 33-year-old man was slashed on the forehead at the Junius St. station in Brownsville around 6:54 p.m., cops said.

The victim was taken to Brookdale Hospital in stable condition, cops said.

Police are searching for a man in his 20s who was last seen wearing a white shirt and carrying a blue shopping bag.