Article 50 author Lord Kerr says Brexit could be stopped

The Scottish cross-bench peer who wrote Article 50 - the agreement which the UK would use to end its EU membership - said leaving was not inevitable.

Lord Kerr of Kinlochard told BBC Scotland political correspondent Glenn Campbell that leaving was "not irrevocable".

He added: "You can change your mind while the process is going on.

"During that period, if a country were to decide actually we don't want to leave after all, everybody would be very cross about it being a waste of time.

"They might try to extract a political price but legally they couldn't insist that you leave."