Montreal police officers are involved in a standoff with protesters who have broken away from a larger demonstration this afternoon.
Tear gas has been fired at some people in an attempt to get them to disperse.
The anti-austerity protest began with thousands of people gathered in the city's business district.
Unions, student federations and social groups all took part in the largely peaceful protest.
Demonstrations against the Liberals have multiplied in recent months as Premier Philippe Couillard's government continues with cost-cutting measures aimed at reaching a balanced budget in 2015-16.
