Suffolk County police and Crime Stoppers are trying to find a man suspected of assaulting a woman in Sayville earlier this month.

Police said Wednesday the suspect and his victim were riding on the same Long Island Rail Road train that stopped at the Sayville station early on the morning of March 12.

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The man followed the woman for several blocks before assaulting her at Hiddink Street and Lincoln Avenue at about 12:20 a.m., police said.

The woman told police she saw the suspect before the assault, at the Bay Shore train station; he was possibly heading to the Mastic-Shirley area, police said in a news release.

Anyone with information can call Crime Stoppers at 800-220-8477. All information will be kept confidential.