Multiple Canadian politicians are expressing their concern regarding the ongoing U.S. Capitol riots.

The leaders of each major Canadian party — Justin Trudeau, Erin O'Toole, Jagmeet Singh, Annamie Paul, and Yves-François Blanchet — all tweeted messages of sadness and reproach regarding the violence at Capitol Hill.

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In his tweet, Prime Minister Trudeau said the violence constituted an "attack on democracy in the United States."

He echoed language from Conservative leader Erin O'Toole, who said he was "deeply saddened" to see the U.S. gripped in "chaos."

The Green Party's Annamie Paul expressed her "deep concern" with the situation, and both the NDP's Jagmeet Singh and the Bloc Québécois's Yves-François Blanchet called out Trump personally.

Singh accused President Trump of "inciting" the "horror" of the riot.

"The violence must end," he said.

One person has reportedly been shot and killed after violent protestors stormed the Capitol, according to multiple U.S. outlets.