TORONTO - Toronto police are concerned there may be more victims after a woman was attacked near a subway station east of the city's downtown.

Police say a 32-year-old woman was allegedly sexually assaulted at a convenience store near the CastleFrank station.

German Alvarenga Alas is charged with two counts of sexual assault, one count of criminal harassment and one count of possession of a controlled substance.

The 37-year-old of no fixed address is set to appear in court later today.

Police are asking anyone with information on additional assaults to come forward.