Highway 11 south of Matheson is closed for a crash.
According to OPP North East on Twitter, it is a two-vehicle crash and one driver has serious injuries. The highway is expected to be closed for an extended period.
Northbound traffic should detour through Highway 572, and southbound traffic can detour on Highway 101 in Matheson to Highway 672.
Update: The Special Investigations Unit has invoked its mandate in relation to the crash. More details are available here.