A family of three, which includes a small child, have become the first migrants to arrive in Britain under Labour's one-in, one-out deal with France.
Sir Keir Starmer signed a deal with French President Emmanuel Macron in a bid to establish a legal route for asylum seekers to stop people from making the perilous trip across the Channel on small boats.
The first migrants who have made the trip have already been deported to France under the agreement.
After four people were removed from Britain, the Home Office said the move was part of "critical first steps" under the pilot scheme.
A Home Office spokesman said it was a "clear message to people-smuggling gangs that illegal entry into the UK will not be tolerated".
"We will continue to detain and remove those who arrive by small boat," the spokesman said.
"And we will work with France to operate a legal route for an equal number of eligible migrants to come to the UK subject to security checks."
The news comes as the Government attempts to tackle the migrant crisis with more than 50,000 people have made the journey since Labour came into office last year.
New Home Secretary Shabana Mahmood is looking to tackle the small boat crisis
| GETTYIn 2025 alone, 32,188 people have arrived by small boats.
More than 1,000 arrived in a single day last Friday.
While the number remains low, the Government has plans to increase the number of people being deported under the agreement. It runs until June next year.
Meanwhile, it has been reported that foreign criminals were being offered up to £2,000 to agree to be deported back to their home countries.
Migrants struggling to board a small boat bound for Britain | PAAlmost 50 foreign national offenders were filmed by ITV News being taken from immigration removal centres on Tuesday so they could be flown back to Romania.
They were each given bank cards pre-loaded with up to £2,000.
Ms Mahmood said: "Out of context, it's not great, it doesn't look good", but argued that "a voluntary removal is actually cheaper for the British taxpayer".
She explained: "It has long been the case that we do offer financial packages as an incentive to people to drop their claims and drop the attempts they make to stay in our country, and to board a flight and leave."
The return scheme could save an estimated £54,000 a year per prisoner and is designed to encourage offenders to agree to an early removal from the UK before they have completed their prison sentences.
The Home Secretary's move could pave the way for sex offender Hadush Gerberslasie Kebatu to be deported, after he was sentenced to 12 months in jail yesterday.
Nearly 11,000 foreign offenders are in jails in England and Wales, accounting for more than one in eight in total prisoners and costing the taxpayer nearly £600million a year.
Ms Mahmood said she "will be ramping up the numbers" with the one-in, one-out scheme and "hopes to say more about that in the weeks to come".
The Facilitated Return Scheme has been in place for foreign criminals since 2006.
Those who choose to leave the country can be handed cash up to £1,500 to help their resettlement, with the maximum amount available to foreign nationals who ask to be removed while they are serving their prison sentence, or eligible family members.
A £750 payment is offered to offenders who apply after their jail term, or to those who have non-custodial convictions.
There is also a discretionary extra £500 grant for those with vulnerabilities including mental health disorders, disabilities, serious illness or homelessness.