Police are on the hunt for two men involved in an assault and robbery on a Bronx train last month.

According to officials, one man grabbed the victim's cell phone while the other punched him in the face on the 1 train Dec. 17. The suspects also stole the man's wallet and told him they had a knife before getting off at West 231st Street.

Authorities have released two pictures of the men. Both are described as Hispanic, 17-23 years old with thin builds. They were last seen wearing hooded sweatshirts and jeans.

Anyone with information should call Crime Stoppers at 1-800-577-TIPS.