The closure was reported just before 5:45 p.m.
A crash has forced the closure of Highway 17 in both directions in the Montreal River area.
Ontario 511 is reporting the closure, which happened shortly before 5:45 p.m., at Twilight Road in Montreal River.
Traffic in both directions is affected and the length of the closure is not known at this point.
Additional details will de added when they become available.