UPDATE: All lanes reopened around 2:15 p.m.
A gas leak has forced the closure of a lane of northbound Rock Quarry Road near Sunnybrook Road.
The gas leak was reported around 10:15 p.m. Thursday. The leak has been capped but there is no timetable for when that lane of Rock Quarry Road will reopen.
The cause of the leak is unknown at this time.