A man who allegedly sexually assaulted a Brooklyn subway rider last week is suspected in two additional incidents in the borough, according to police.

NYPD officials are working to track down the suspect, who made headlines on Oct. 6 when he ejaculated on a 22-year-old woman as she slept on a Bay Ridge-bound R train around 4 a.m.

The man fled the train at the 25th Street station, and police said they later connected him to two more instances of sexual abuse that had happened two days prior.

According to police, the same suspect approached a 27-year-old woman from behind on Saint John’s Place in Park Slope around 10 p.m. Oct. 4 and sexually abused her before fleeing on foot.

He resurfaced an hour and a half later on Wyckoff Street and Court Street in Cobble Hill, where police say he approached a 30-year-old woman from behind and grabbed her breast and buttocks. He again fled on foot, reappearing on the subway two days later.

The victims in each instance were not physically injured, according to police. The 22-year-old subway rider was transported by EMS to NYU Langone Hospital-Brooklyn for evaluation, but the others refused medical attention.

Police officials said the three incidents are enough to establish a pattern.

The man is believed to be 25-30 years old, 5’7'' and about 170 pounds. He has a medium complexion and a medium build, and has been captured in surveillance videos wearing a black hoodie with graphics on it, black pants and black and white sneakers. He has also been seen wearing white headphones and carrying a gray cross body bag.

Anyone with information in regard to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782). The public can also submit their tips by logging onto the Crime Stoppers website at https://crimestoppers.nypdonline.org/ or on Twitter @NYPDTips.