School buses in Oxford County have been cancelled for the morning run due to thick fog blanketing the area.
For the list of schools, you can visit www.mybigyellowbus.ca.
Environment Canada has issued a fog advisory for Woodstock and Oxford County, as well as London and Middlesex County.
Visibility is near zero in some spots.
The fog is expected to lift later this morning, but transportation to schools in Oxford County is cancelled for the morning.