A crash has shut down a section of Highway 17 north of Sault Ste. Marie.
As of 7 p.m. Friday, Ontario 511 says all lanes are closed in both directions between Batchawana Bay and Wawa.
Those who have to drive tonight are being asked to use caution as the area is currently under a winter weather travel advisory.
Environment Canada says isolated areas of heavy snow could significantly reduce visibility.