A POLICE protection officer who was travelling with Foreign Secretary Dominic Raab has been suspended after leaving his gun on a plane.

The officer was travelling with Raab to the US when he left his gun on a plane at London's Heathrow Airport yesterday. The gun was reportedly found by a cleaner.

A Metropolitan Police spokesman said: "We are aware of the incident on a flight into the UK on Friday, September 18 and we are taking this matter extremely seriously.

"The officer involved has since been removed from operational duties whilst an internal investigation into the circumstances is taking place."

In a similar incident in February, former prime minister David Cameron's bodyguard left his gun in a plane toilet.

Passports belonging to Cameron and the officer were also found alongside the weapon, according to reports at the time.

The gun, believed to be a 9mm Glock 17 pistol, was found by a passenger, who handed it to flight attendants on a transatlantic flight.

Raab visited Washington to speak with senior figures including US Secretary of State Mike Pompeo on issues of Brexit and Northern Ireland.