RCMP provided an update Tuesday, saying they continue their investigation into the disappearance of 17-year-old Tyson Blair MacDonald. The PEI RCMP Major Crime Unit is leading what the police said Monday is now a criminal investigation. On Tuesday, the RCMP helicopter and the RCMP Atlantic Divisions Tactical Support Group have been searching for evidence in areas of Kings County. The RCMP Tactical Support Group is a unit made up of officers from across Atlantic Canada who’s many duties include conducting evidence searches. The RCMP Major Crime Unit is getting help from a number of RCMP teams and resources, including the PEI RCMP Digital Forensic Services, PEI Forensic Identification Section, PEI RCMP Police Dog Service, and PEI RCMP Drone Operators. Anyone with information that can assist in the investigation is asked to contact the RCMP at 902-566-7112 or PEI Crime Stoppers.