Russian troops have launched a broad assault on Ukraine from three sides.
The military attack began before dawn with explosions in the capital Kyiv and other cities.
Ukrainians started fleeing some cities, and the Russian military claimed to have incapacitated all of Ukraine's air defences and airbases within hours.
Ukraine's leadership said at least 40 people have been killed so far in what it called a ``full-scale war'' targeting the country from the east, north and south.
Prime Minister Justin Trudeau says he will meet today with fellow G-7 partners to discuss the invasion and would work quickly with NATO to come up with a collective response.
