Storm Dorian has made landfall in the Canadian province of Nova Scotia as a post-tropical cyclone.
Weather officials say Dorian has left about half a million customers without power.
As the winds began inflicting damage in Canada, the storm was upgraded to a Category 2 by hurricane tracking services in both Canada and the United States.
The storm is expected to pass over northern Newfoundland and eastern Labrador early on Sunday.
Residents close to the shore were advised to evacuate as a precaution.