Montreal police say at least three people were arrested after protests denouncing NATO turned violent Friday evening as the city begins hosting the 70th annual NATO Parliamentary Assembly.

Canadian Prime Minister Justin Trudeau on Saturday condemned violence and antisemitism at anti-NATO and pro-Palestinian protests in downtown Montreal on Friday night, where NATO delegates have gathered for the alliance's annual assembly.

Senior Canadian ministers have condemned an anti-NATO protest in Montreal that turned violent, saying “hatred and antisemitism” have no place in the country

Politicians in the prime minister's cabinet, opposition parties as well as Quebec leaders have called the violence during Friday's anti-NATO demonstration acts of antisemitism, but protesters deny the claim, saying they demonstrated against the "complicity" of NATO member countries in a war that has killed thousands of Palestinians.

Three people were arrested after pro-Palestinian and anti-NATO protests in Montreal turned violent on Friday, police said. Protests denouncing NATO occurred in the city all day as it hosts the 70th annual session of the NATO Parliamentary Assembly from Friday to Monday.

NATO, pro-Palestinian demonstrators wreaked havoc on the streets of Montreal on Friday night, while Prime Minister Justin Trudeau attended a Taylor Swift concert in Toronto. (Credit: Reuters)

Anti-NATO protesters gathered again in Montreal on Saturday to demand Canada withdraw from the alliance, a day after a demonstration organized by different groups resulted in arrests, burned cars and shattered windows.