SUDBURY -- Update:

The Ministry of Transportation says Highway 144 reopened just after 4 p.m. Thursday after a commercial vehicle crashed into a ditch.

Original:

Ontario Provincial Police say Highway 144 is expected to remain closed for four hours between Highway 101 and the watershed Thursday after a commercial vehicle crashed into a ditch.

Const. Michelle Simard told CTV News in an email it happened south of McKeown Road, south of Cache Campground, Thursday morning.

"There are no injuries," Simard said. "A commercial motor vehicle is being removed from the ditch. The highway is expected to be closed for approximately four hours."

Ontario's Ministry of Transportation said in a tweet that all lanes are closed in both directions.

There is no word on the cause of the crash or if any charges are pending.

CTV News will continue to follow the story. Check back for updates.