The number of asylum seekers fleeing to Canada from the US in the wake of Trump's immigration crackdown has soared since the weather turned warmer.

In the first three months of this year, 3,605 people have crossed the border from south to north, which is more than the total for the whole of 2013.

The figure has grown month-on-month from 920 in January to 1,465 in March and the number of those detained for entering the country illegally has tripled in that time.

The border officers' union in Canada believes that the country needs to upgrade presence along the United States border after 382 people reportedly made asylum claims at a single entry point in January

RCMP officers look on as an extended family of seven people from Turkey cross the US-Canada border just before dawn on February 28, 2017 near Hemmingford, Quebec

The number of people recorded crossing the border from the US to Canada in the first three months of this year

Canadian authorities caught 887 asylum seekers crossing unlawfully into Canada from the United States in March, nearly triple the number in January, according to numbers released by the government Wednesday.

This brings the total number of asylum seekers caught illegally walking across the border to 1,860 so far this year.

The new statistics suggest those numbers could rise further as the weather warms.

Canada is on track to see the highest number of asylum claims in six years, given the pace of claims filed so far, as increasing numbers of people cross into Canada to make refugee claims in the wake of US President Donald Trump's election and his crackdown on refugees and illegal immigrants.

In the first quarter of 2017, 3,605 people have entered the country compared to 6,960 last year, 4,180 the previous year, 3,770 in 2014, 2,960 in 2013, 3,725 in 2012 and 4,280 in 2011.

When the weather was colder in January this year, 920 made the trip from the US to Canada.

This increased to 1,225 in February and went up again to 1,465 in March.

Under the Canada-US Safe Third Country Agreement, Canada is required to turn asylum seekers away if they try to file refugee claims at land border crossings.

But if people cross the border in between formal crossings, they are taken into custody and questioned by both police and border authorities, then allowed to file claims and stay in Canada while they await the outcome.

Dramatic photos show asylum seekers flooding into Canada across unmanned borders every day from the United States amid fears of a Donald Trump presidency. An extended family of eight people from Colombia were detained by the Royal Canadian Mounted Police officers near Hemmingford, Quebec, in February

The Peace Bridge which connects the United States to Canada in Ft. Erie, Ontario

Refugee advocates have argued that were it not for the Safe Third Country Agreement, people would file claims at border crossings instead.

The people caught crossing unlawfully comprise a fifth of everyone who has filed asylum claims in Canada so far this year but they loom large in Canadian politics, with the federal government taking fire for its wait-and-see approach.

Nearly half of the people surveyed in an opinion poll released in March wanted to deport people illegally crossing into Canada from its southern neighbor.

'The majority of irregular migrants are holders of visas for the United States,' according to a statement released Wednesday from the office of Canada's Public Safety Minister Ralph Goodale.

'Canadian authorities are managing the increase in asylum seekers in a sound and measured way.

'To be clear - trying to slip across the border in an irregular manner is not a 'free' ticket to Canada.'

Now undocumented immigrants are flooding north as President Donald Trump ratchets up his invective about the 11 million people who live in the country without official papers

Almost three-quarters of the asylum seekers caught crossing so far this year were taken into custody in Quebec, the government data showed.

Roxham Road, which straddles Champlain, New York and Hemmingford, Quebec, has become such a common spot that photographers cluster there and would-be refugees refer to it by name.

Most of the others were taken into custody in Manitoba and British Columbia - 331 and 201, respectively.

Police said Wednesday they have charged 43-year-old Michelle Omoruyi with human smuggling and conspiracy to commit human smuggling.

Police allege they found Omoruyi driving nine west African asylum seekers across the US border into the prairie province of Saskatchewan Friday night.

The nine asylum seekers have filed refugee claims and are not in custody.