The movements of the Yantar is a worry for Britain's defence chiefs and provocative.

John Healey says the Russian ship is in waters north of Scotland and is being monitored by UK forces.

UK defence secretary John Healey said the Yantar directing lasers at RAF planes was a ‘deeply dangerous’ move

The vessel Yantar made its second known visit this year north of Scotland and entered British waters in the last few weeks and Britain is taking it "extremely seriously."

"We urge the UK to refrain from taking steps that exacerbate the crisis in Europe," the embassy said

The movements of the Yantar is a worry for Britain's defence chiefs and provocative.

Defence Secretary John Healey condemns the Yantar's actions as 'deeply dangerous' and says Britain is poised to react.