KITCHENER One person is in custody after reports that shots were fired at the westbound Cambridge OnRoute on Highway 401 on Friday evening. OPP Sgt. Kerry Schmidt told CTV News there is a large police presence on the scene, including both the OPP and Waterloo regional police tactical unit. In a video on Twitter, Schmidt said officers were called to the scene around 6:45 p.m. He said a male was arrested at the scene. They were advised that a male party had fired into the ceiling and was still present on scene, said OPP Sgt. Taylor Konkle. Schmidt said he doesn t know how many shots were fired.