Defence Secretary John Healey said. A British warship and aircraft were deployed to deter the "malign" activity by Moscow and there was "no evidence" of any damage to UK infrastructure in the Atlantic, he added. Addressing Russian President Vladimir Putin directly, Healey said: "We see you. We see your activity over our cables and our pipelines, and you should know that any attempt to damage them will not be tolerated and will have serious consequences." The UK is dependent on its undersea cables and pipelines for its data and energy. There are around 60 undersea cables which come ashore at several points along the UK coastline, particularly around East Anglia and South West England. More than 90% of the UK's day-to-day internet traffic travels via these undersea cables. Healey told a Downing Street press conference on Thursday that Russia had sent an Akula class submarine as a diversionary tactic while two of its GUGI spy submarines carried out the surveillance of these cables. Healey said the attack submarine soon left UK waters and went back to Russia after it was monitored, while the two GUGI vessels remained. (BBC)