"We see you." That was UK Defence Secretary John Healey’s defiant warning to Russia's President Vladimir Putin after his spy ship was spotted in UK waters this week. The ship, known as Yantar, is operated by a Russian Ministry of Defence agency and officially carries out oceanographic research.

The British defense secretary told Parliament that the Yantar, which he described as a Russian spy ship, had come near Britain’s coast for the second time in a few months.

The British navy said Wednesday that is ramping up measures to protect its waters from secret Russian operations after identifying a Russian spy vessel in UK waters for the second time in weeks.