Truckers paralyzing the Canadian capital in anger at Covid rules showed no sign of backing down Tuesday, as several of the nation's provinces announced it was time to roll back restrictions that count among the world's toughest.

With authorities struggling to bring the protest movement to heel, Saskatchewan in the country's west said Tuesday it was ready to lift all pandemic restrictions, with Quebec and Alberta also signaling plans to ease measures.

In the capital, Prime Minister Justin Trudeau -- who a day earlier issued a stern warning the protests "had to stop" -- appeared to shift tone, saying he understood "how frustrated everyone is" and that "the time is coming when we will be able to relax."

A driver looks out from his truck covered in support messages, as demonstrators continue to protest the vaccine mandates and other public health measures
A driver looks out from his truck covered in support messages, as demonstrators continue to protest the vaccine mandates and other public health measures AFP / Dave Chan

"We're all sick and tired of restrictions, of mandates, of having to make sacrifices," Trudeau said, adding, however, that vaccine mandates were the "way to avoid further restrictions."

The so-called "Freedom Convoy" began in January in western Canada -- launched in anger at requirements that truckers either be vaccinated, or test and isolate, when crossing the US-Canadian border.

Having snowballed into an occupation of the Canadian capital, the protest has sparked solidarity rallies across the nation and abroad, and by Tuesday had forced the temporary closure of a key US border bridge, the busiest international land-border crossing in North America.

A person holds a sign reading "Freedom" as truckers and supporters continue to protest against mandates and restrictions related to Covid-19 vaccines in Ottawa
A person holds a sign reading "Freedom" as truckers and supporters continue to protest against mandates and restrictions related to Covid-19 vaccines in Ottawa AFP / Dave Chan

Amid a state of emergency in Ottawa, federal police have deployed among demonstrators waving Canadian flags and anti-Trudeau placards in protests now in their second week and fast becoming a rallying cry for far-right and anti-vaccine groups.

Briefing reporters Tuesday, Ottawa Deputy Police Chief Steve Bell said his agents had made 22 arrests to date.

"Our message to demonstrators remains the same: Don't come. And if you do, there will be consequences," he said.

Federal police have deployed to support local authorities Ottawa, as they struggle to tame the trucker movement that has prompted a state of emergency in the Canadian capital
Federal police have deployed to support local authorities Ottawa, as they struggle to tame the trucker movement that has prompted a state of emergency in the Canadian capital AFP / Dave Chan

Under light snowfall, the truckers have been warming themselves by open pit fires and playing street hockey.

Canadian Prime Minister Justin Trudeau has pledged federal support for local authorities, as they struggle to tame the trucker movement that has prompted a state of emergency in Ottawa
Canadian Prime Minister Justin Trudeau has pledged federal support for local authorities, as they struggle to tame the trucker movement that has prompted a state of emergency in Ottawa AFP / Dave Chan

Since a court ordered their incessant loud honking to stop, they have turned instead to revving the engines of their big rigs.

Police say some of the truckers have brought their children, making any evacuation more complex -- especially as some have removed their tires and others have modified their brakes to immobilise their trucks.

Protester Martin Desforges, 46, told AFP he was determined to stay "until the end," which organizers said would come only when all pandemic restrictions were lifted.

"I'm against wearing a mask, all distancing measures and restaurant closures," he said.

From the original opposition to vaccine requirements for truckers, the movement has morphed into a broader protest against Covid-related restrictions and Trudeau's Liberal government, and put a spotlight on pandemic curbs around the world
From the original opposition to vaccine requirements for truckers, the movement has morphed into a broader protest against Covid-related restrictions and Trudeau's Liberal government, and put a spotlight on pandemic curbs around the world AFP / Dave Chan

"Getting vaccinated should be a decision between a person and their doctor," echoed fellow protester John Hawley-Wight, "not the government."

More than 80 percent of Canadians aged five and up are fully vaccinated against Covid-19.

"We're all fed up," said Francois Legault, premier of Quebec province, which announced it would lift most Covid restrictions by mid-March, with hospitalizations now trending downward.

"Right now, we can take a calculated risk and finally turn the page," he said.

Saskatchewan and Alberta announced a lifting in coming weeks of Covid restrictions, including requiring testing or proof of vaccine status for businesses and public venues -- saying the "policy has run its course."

From the original opposition to vaccine requirements, the trucker movement has morphed into a broader protest against Covid-related restrictions and Trudeau's Liberal government, and put a spotlight on pandemic curbs around the world.

US and Canadian business groups on Tuesday demanded protesters end their blockade of the vital Ambassador Bridge trade route connecting Ontario province and the US state of Michigan.

"We cannot allow any group to undermine the cross-border trade that supports families on both sides of the border," said a joint statement.

Another key US-Canada trade link has also been clogged by protestors for several days, with Canadian Transport Minister Omar Alghabra warning a prolonged blockade "will have serious implications on our economy, on our supply chain."

Inspired by the Canada protests, a convoy of trucks and campervans blocked streets near New Zealand's parliament in Wellington Tuesday to protest against Covid measures, while calls have multiplied on social media for similar rallies in Europe and the United States.

The truckers have received US support, including from former president Donald Trump, while at home, according to a Leger poll, 44 percent of vaccinated Canadians sympathize with their "concerns and frustrations."

That does not include everyone in Ottawa, however.

"It's the moment when some people's freedom infringes on others'" that there's a problem, he added.