The Special Investigation Unit (SIU) has invoked its mandate to investigate a head-on crash between an Ontario Provincial Police (OPP) cruiser and another vehicle. Provincial police shut down Highway 35 from Somerville 3rd Concession to Glenarm Road in Fenelon Falls shortly before 3 p.m. Police say three people including the officer were taken to a local hospital. In the late afternoon, the SIU took the reins of the investigation from the OPP. Motorists are to expect delays if travelling through the area, and plan alternate routes when possible.