The notices state the Emergencies Act gives police the power to seize vehicles that are part of the demonstration and ban people from travelling within a certain area.

Vaccinated travellers will no longer need a molecular COVID-19 test to enter Canada starting Feb. 28 because the COVID-19 situation in Canada has improved, the federal health minister announced Tuesday.

The government will use that act to force towing companies to remove big rigs and other vehicles that are blocking highways and other critical infrastructure, establish zones where public assembly is not allowed, and require banks to suspend or freeze accounts suspected of supporting the blockades, including those belonging to companies whose trucks are part of the convoy.

Pressure has mounted on both sides of the border, and across the political aisle in Canada, for protesters blockading key crossings with the U.S. and others encamped by Parliament Hill to go home, or for officials to move them out of the way.

The police also warn that protesters' vehicles and other property may be seized and possibly forfeited and that charges or convictions related to unlawful activity may lead to them being barred from travelling to the United States.

Surveillance video appears to show two men light a package of the bricks in an apartment lobby and secure the front door handles together before leaving through the side door around 5 a.m. Sunday.

Still, Chief Peter Sloly warned there "may not be a policing solution" to the demonstration.

But Ottawa remains at a standstill, as trucks and big rigs remain along major roads in the downtown core. Many businesses have remained closed since Friday over safety concerns.