EU leaders are not “bluffing” when they say the UK will be left without access to the single market when it leaves the bloc if there is no free movement of people, Malta’s prime minister says.

Joseph Muscat, whose country assumes the EU’s presidency in January, told the BBC: “This is really and truly our position and I don’t see it changing”.

Theresa May says the UK will begin the legal process to leave the EU by March.

Mr Muscat said talks on the details of a “new relationship” could be delayed.