Police are searching for a suspect after a woman was allegedly sexually assaulted on the subway last week.

The alleged incident occurred at around 4:40 p.m. on Friday on a train travelling southbound on the Yonge subway line.

Police say a 23-year-old woman was standing inside a subway train when a man approached her from behind and sexually assaulted her.

The man, according to investigators, exited the train at King Station.

The suspect has been described by police as a white male who stands about five-foot-ten and is approximately 200 pounds with short dark hair and blue eyes.

He was also reportedly clean-shaven at the time of the alleged incident and was wearing a black baseball hat, a blue dress shirt and black dress pants.

Police say they are concerned there may be other victims and ask anyone with information to call investigators at 416-808-5200 or Crime Stoppers anonymously at 416-222-TIPS (8477).