British holidaymakers travelling anywhere in the world have been told to be vigilant as they are at risk of being attacked by Islamist terrorists.


The Foreign and Commonwealth Office on Friday night issued a worldwide travel warning, saying tourists were at a risk of attack as a result of Britain’s intervention in Iraq and Syria.


The warning applies to every country in the world, and the FCO updated travel guidance on its website. It reflects a “generalised threat” to Britons, rather than intelligence of a specific and credible attack.


The warning states: “There is considered to be a heightened threat of terrorist attack globally against UK interests and British nationals from groups or individuals motivated by the conflict in Iraq and Syria. You should be vigilant at this time.”


In August the domestic terror threat level was raised to “severe”, its second-high level, amid growing concern that British jihadists fighting alongside Isil could return to carry out attacks in this country.