A family of three, including a small child, have become the first people to arrive in the UK under the government’s “one in, one out” treaty with France.

It comes after the first four migrants were sent back across the Channel as part of the deal, which has been in force since early August.

The Home Office said the migration treaty was “historic” and that “these are critical first steps”.

“This is a clear message to people-smuggling gangs that illegal entry into the UK will not be tolerated”, a spokesman said.

“We will continue to detain and remove those who arrive by small boat. 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.”