Dufferin OPP are asking for help from the public in locating a missing teen. Officers say 15-year old Rochelle Codi Wisse, also known as Chelle, has been missing since Sunday evening. Originally from British Columbia, Rochelle was reported missing at around 8:30pm in Mulmur Township. Police searched the area using the K-9 unit but were unable to find her. They say she is very new to the area and does not have any friends or family in Ontario.