Theresa May has said Britain could still be in the Brexit transition period in spring 2022, some six years after Britain voted to leave the EU.

The so-called "implementation period" is currently set to end in December 2020.

However, the EU's chief negotiator Michel Barnier on Sunday floated the idea of the UK remaining under EU control until the end of 2022, which would infuriate Tory Brexiteers and cost billions of pounds.