UK says Russia ran submarine operation over cables and pipelines
UK says Russia ran submarine operation over cables and pipelines
British Defence Secretary John Healey confirmed that Russian submarines had executed a covert mission near UK waters, targeting critical infrastructure. The operation, conducted in the North Sea region, involved monitoring undersea cables and energy pipelines, according to his statement. He emphasized that the UK had deployed a warship and aircraft to counter the “malign” activity, with no damage reported to the nation’s Atlantic infrastructure.
“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,” Healey said during a Downing Street press conference.
The UK’s reliance on undersea cables and pipelines for data and energy underscores the significance of the operation. Over 90% of the nation’s daily internet data flows pass through these cables, which connect to the UK coastline, especially in East Anglia and South West England. Additionally, a network of underwater gas pipelines, notably in the North Sea, supplies energy from both the UK and Norwegian Continental Shelves.
Submarine Tactics and UK Response
Healey described how Russia employed an Akula-class submarine as a diversion while two Guggi-class vessels conducted surveillance. The first Akula departed UK waters shortly after being tracked, whereas the two Guggi submarines remained active. The Royal Navy responded with a Type 23 frigate, HMS St Albans, an RFA Tidespring vessel, and Merlin helicopters to monitor all three Russian subs.
While Norway was explicitly named as a partner in tracking the activity, Healey noted that other nations also participated. “Our forces made it clear that their movements were under observation, and their secret operation had been exposed,” he stated, highlighting the use of sonar buoys to demonstrate continuous monitoring.
Global Infrastructure Impact
Undersea cables and pipelines are vital to global connectivity, with over 600 such cables spanning 870,000 miles (1.4 million km) worldwide. These cables transmit electricity and information across oceans, often arriving at discreet locations. The UK’s energy supply is further supported by a 724-mile-long (1,166km) pipeline linking Norway to the UK, with 77% of its gas imports arriving via this route.
According to BBC InDepth, Russia has been engaged in “hybrid warfare” against the UK and western Europe since 2025, aiming to deter continued military backing for Ukraine. This strategy involves anonymous, deniable attacks in ambiguous contexts, avoiding direct attribution to war. The Russian embassy had previously denied interest in British underwater communications, though the recent incident suggests otherwise.