Britain should introduce UK-only passport lanes at its airports amid concerns that Europe has brought in tougher security checks on holidaymakers as a "warning" over Brexit, a minister has said.

Tourists are having to queue for up to four hours at passport control in some European countries after the introduction of tougher security checks in the wake of terror attacks on the continent.

The more detailed checks, which were introduced in May, apply to British citizens because the UK is not a member of the open-borders Schengen zone.