Students in southern Chatham-Kent will have to find their own way to school this morning.
Fog has forced the cancellation of school buses in Zone 7 for the Lambton-Kent, St Clair Catholic, and Providence school boards.
That affects schools in Tilbury, Wheatley, Pain Court, Blenheim, and the surrounding areas, as well as any bus that has to travel through Zone 7 to get to its destination.
Buses in all other zones are running normally this morning, and buses in all zones will be on the road this afternoon to pick students up from school.
