Durham Police are investigating a sexual assault incident that happened on a GO bus in Pickering. Officials say a 49 year old woman was touched inappropriately by a man sitting behind her on a bus in the Kingston Road and Dixie area. The incident happened on Monday afternoon, and police are asking other possible victims to come forward. 36 year old Eric Schaffner has been charged with sexual assault. Anyone with information is urged to call police at 905-579-1520, ext.5324 or Crime Stoppers at 1-800-222-TIPS (8477).