Defence Secretary John Healey said Russia "remains the most pressing and immediate threat to Britain", and added that "any threat will be met with strength and resolve".

A Royal Navy nuclear-powered submarine was deployed to warn off a Russian spy ship operating in the English Channel, the government has revealed. The hunter-killer submarine surfaced close to the Russian vessel The Yantar which was loitering over critical undersea cables.

Defence Secretary John Healey said Russia "remains the most pressing and immediate threat to Britain", and added that "any threat will be met with strength and resolve".

Royal Navy submarine used to warn off Russian spy ship loitering over cables - The nuclear-powered hunter-killer submarine surfaced close to the Yantar to let the Russian ship know it was being watched.

A Russian spy ship entered British waters twice in recent weeks, prompting the UK to deploy Royal Navy ships, Royal Air Force planes and a submarine, Defence Secretary John Healey said.

British Defence Secretary John Healey told parliament Wednesday the Royal Navy tracked a “Russian spy ship” that passed through UK waters, warning Russia’s President Vladimir Putin: “We know what you’

John Healey warned Vladimir Putin ‘we see you, we know what you are doing and we will not shy away from robust action’.

A Russian naval ship, Yantar, has entered UK waters, reportedly under the alleged orders of President Vladimir Putin. The ship entered the UK's exclusive economic zone, approximately 45 miles off the British coast.

Moscow’s intelligence ship Yantar enters UK waters in ‘another example of growing Russian aggression’, according to the Defence Secretary

Britain said it monitored a Russian spy ship in the English Channel in recent days and would strengthen its response to secret operations by Russian ships and aircraft in an effort to protect undersea cables.