NEW YORK (CBSNewYork) — Police were searching Sunday for a suspect who they say groped several women and girls on No. 1 trains on the West Side of Manhattan.

Around 5:40 p.m. Monday, Sept. 19, the man sat down next to a 24-year-old woman on a moving No. 1 at the 66th Street-Lincoln Center station and rubbed the inside of her thigh, police said.

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The same man also rubbed the inside of an 18-year-old woman’s thigh on a No. 1 train at the Times Square-42nd Street station around 6:45 p.m. Wednesday, Sept. 9, police said.

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Police also suspect the man in an incident that happened up to five years ago. Sometime between Sept. 29, 2011, and June 30, 2012, the man rubbed the inside of a 13-year-old girl’s thigh on a No. 1 train at the 110th Street-Cathedral Parkway station, police said.

The suspect was described as a white male in his 40s standing about 6 feet tall. He was last seen wearing a green T-shirt and carrying a black backpack.

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Anyone with information was asked to call the NYPD Crime Stoppers at (800) 577-TIPS or (888) 57-PISTA for Spanish, log onto the Crime Stoppers website, or text tips to 274637 (CRIMES) and enter TIP577.