Police have charged a man who allegedly followed a teenage girl off a streetcar and then sexually assaulted her as well as another woman who was in the area.

Police say that a girl between the ages of 15 and 18 was disembarking a westbound streetcar on Dundas Street near Spadina Avenue sometime between 3:15 p.m. and 3:40 p.m. on Friday when she was followed by the suspect.

At that point, police allege that the suspect approached the girl from behind and sexually assaulted her.

The suspect also sexually assaulted another female, police say.

Parviz Ahmadi, 27, of Toronto, was arrested at the scene and charged with two counts of sexual assault and one count of failure to comply with the terms of probation.

Police say they are concerned that there could be other victims who have not yet come forward.

Anyone with information is asked to contact police at (416) 808-5204 or Crime Stoppers anonymously at (416) 222-TIPS (8477).