Highway 15 is closed in both directions near Lacolle, Que., after a truck carrying an oversize load struck an overpass.

The accident happened early Tuesday afternoon near Saint-Mathieu, in Montérégie, about 38 kilometres north of the U.S. border.

Provincial police said a truck carrying a wind turbine scraped the underside of the overpass while trying to pass through. The truck likely hit the overpass because the load was "too high," explained provincial police spokesman Ronald McKinnis. "We stopped [all] traffic because we don't know exactly the damage to the overpass."

The truck was able to continue driving, but stopped about 200 metres beyond the overpass.

No one was injured in the accident.

Inspectors with Transport Quebec were dispatched to the crash site to test the overpass's safety. Both Highway 15 and the overpass will remain closed until further notice, MacKinnis said.

Highway 15 is the most popular route to the Lacolle border, which connects Quebec to New York State.

Transport Quebec suggests motorists use routes 132 and 221 or Highway 30 as alternatives.

With files from the Canadian Press