Some asylum seekers will be flown to Rwanda to have their applications processed, under UK government plans.
Boris Johnson is set to unveil the plans later, before Home Secretary Priti Patel signs a migration deal with the African nation.
BBC home editor Mark Easton said the trial scheme would mean single men arriving in Britain via Channel crossings could be forcibly removed.
Refugee organisations have criticised the plans as cruel and urged a rethink.
Labour said the plan was “unworkable, unethical and extortionate” – and one designed to “distract” from Mr Johnson’s fine for breaking Covid-19 laws.
The Liberal Democrats said the proposal would be expensive and ineffective.
The deal is expected to see Rwanda, which is part of the Commonwealth, given an initial £120m as part of a trial, but opponents say the annual cost of the full scheme would be far higher.
In a speech in Kent, Mr Johnson will argue that action is needed to stop “vile people smugglers” turning the ocean into a “watery graveyard”.
Last year, 28,526 people are known to have crossed the English Channel in small boats, up from 8,404 in 2020.
Around 600 people made the crossing on Wednesday, and Mr Johnson will say the figure could reach 1,000 a day within weeks.
“We cannot sustain a parallel illegal system,” he will say. “Our compassion may be infinite, but our capacity to help people is not.”
Precise details of the policy are yet to be confirmed.
The prime minister will announce plans to hand operational control of the Channel to the navy, break the business model of people-smuggling gangs, and deter people from risking the crossing.
The measures are part of the government’s long-term plan to “take back control of illegal immigration” after Brexit, Mr Johnson will say.
While the number of people crossing the Channel in boats has increased, last year saw fewer people using other routes – such as by lorry – in part because of increased security at the Port of Calais.
Powers awaiting approval
The government’s Nationality and Borders Bill includes a provision to create offshore immigration processing centres for asylum seekers.
The bill is making its way through Parliament, but with the parliamentary session expected to end within weeks, time is running out to pass it into law.
MPs are currently on a break, but when they return, they are due to review a series of amendments, including one about powers to offshore asylum claims.
The government has suffered a series of defeats in the House of Lords over the bill, which has come in for criticism and sparked protests.
‘More suffering’
Human rights campaigners have been critical of the plan around its impact on the human rights of refugees, the cost of the scheme and questioned whether it will even achieve its aims.
Enver Solomon, chief executive of the Refugee Council, said the proposal would not “address the reasons why people take perilous journeys to find safety in the UK”.
He said the scheme would “only lead to more human suffering, chaos and at huge expense of an estimated £1.4bn a year”.
Steve Valdez-Symonds, Amnesty International UK’s Refugee and Migrant Rights Director, described the plan as “shockingly ill-conceived idea” which will inflict further suffering and waste “huge amounts” of public money.
Labour’s shadow home secretary Yvette Cooper said the policy “would cost the UK taxpayer billions of pounds during a cost of living crisis and would make it harder not easier to get fast and fair asylum decisions”.
Alistair Carmichael, home affairs spokesperson for the Liberal Democrats, said the UK had a proud history of providing sanctuary to those in need.
“Thousands of families are opening their homes to refugees, but this Conservative Government is slamming the door in their face,” he said.
Ian Blackford, the Scottish National Party’s Westminster leader, described the idea of sending “vulnerable people” to Rwanda as “absolutely chilling”, adding: “This is not the mark of a civilised society. It’s evil.”
Source: BBC