NEW YORK (CBSNewYork) — Police are asking for the public’s help in finding a suspect in connection with three “strong-arm” robberies on subway trains.

Authorities said the man they are seeking is part of a larger group of suspects.

All three incidents happened on July 15 between 2 a.m. and 10:30 p.m. In the first incident, a group of men assaulted a 27-year-old man before taking his personal property around 2 a.m. on a 6 Train at Westchester Avenue and Saint Lawrence Avenue, police said.

The second happened around 10 p.m. — also on a 6 Train — at Bruckner Boulevard and Hunts Point Avenue. The suspects boarded the train, where they assaulted a 28-year-old man and took his property before pushing him off the train at the next stop, police said.

Finally around 10:30 p.m., authorities said the group approached a 26-year-old man on a 2 Train at the West 14 Street and 7th Avenue station and assaulted him before taking his property.

Anyone with information is asked to call Crime Stoppers at (800) 577-TIPS (8477). The public can also submit their tips by logging onto Crime Stoppers’ website at or by texting their tips to CRIMES (274637), then enter TIP577.

All calls are strictly confidential.