A Toronto man has been arrested after a person was allegedly drugged then sexually assaulted in the downtown core last month. Toronto police say they launched an investigation following reports of a sexual assault on Oct. 19. Investigators allege the suspect approached the victim and provided them with illicit substances at Barbara Hall Park, near Church and Gloucester streets. The suspect then allegedly took the victim to a private residence and offered the victim more illicit substances before sexually assaulting them. On Monday, police arrested Waleed Ameen Adam Abdelrahman, 33, of Toronto. He has been charged with one count of sexual assault. The charges have not been proven in court. Toronto police believe their may be additional victims and are urging anyone with information to contact them.