A "EuroMaidan" rally is being held in Toronto today, as a show of support for anti-government protests in Ukraine.
The event is taking place at 3 p.m. at Yonge-Dundas Square.
People are being asked to come out wearing blue and yellow, the colours of the Ukrainian flag.
"Stand proud ... and show the world that we support human rights, freedom, and democracy in Ukraine," organizers say on the event poster.
Meanwhile, in Ukraine, opposition demonstrators are heading for a major rally in the centre of Kyiv while government backers are gathering nearby for their own demonstration.
Tensions remain strong in the political crisis now in its fourth week.
The opposition's confidence has been bolstered in the past week after riot police stood down from two confrontations with protesters and by indications the government is attempting to appease them. The protest camp in downtown Kyiv has expanded in recent days, with a score of large, army-style tents extending hundreds of meters down the street from Independence Square, the centre of the protests.
Opposition rallies the past two Sundays have attracted hundreds of thousands. Backers of President Viktor Yanukovych's party are also gathering for a counter-demonstration on Sunday.