Counter-terrorism police are now leading the investigation into a fire at an electrical substation that shut down London Heathrow Airport on Friday, with speculation mounting over whether it could be linked to Russia’s campaign of disruption against the West.
Over 1,300 flights were affected as the UK’s busiest airport remained closed until midnight, causing travel chaos for thousands of passengers and disrupting millions of pounds worth of trade. The London Fire Brigade deployed 10 fire engines and around 70 firefighters to contain the blaze which was traced to a transformer within the substation.
While authorities have not confirmed the cause of the fire, questions are being raised over the vulnerability of critical UK infrastructure. Defence analyst and former British Army officer Nicholas Drummond told the Daily Express that although it was “unlikely” Russia was behind the fire, if proven to be sabotage, it would amount to “a direct act of war.”
“It seems astounding that a single fire at an electricity source shut down one of the world’s busiest airports,” Drummond said. The disruption has prompted scrutiny of Heathrow’s resilience, with Willie Walsh, director general of the International Air Transport Association, calling it a “clear planning failure.”
Power failure exposes infrastructure vulnerability
National Grid insiders told the BBC that Heathrow does have multiple power sources, but the fire damaged a “particularly important bit,” rendering backup systems ineffective. The blaze, fuelled by flammable cooling oils used in the electricity transformation process, is still under investigation.
The speculation over sabotage comes amid growing concerns about Russia’s hybrid warfare tactics across Europe. Since the full-scale invasion of Ukraine in 2022, European intelligence agencies have attributed dozens of acts of sabotage, cyberattacks, and covert operations to Moscow and its allies.
An investigation by The Associated Press documented nearly 60 incidents in which Western officials linked Russia, pro-Russian groups or Belarus to acts of vandalism, arson, espionage or targeted violence. These attacks range from minor disruptions – such as blocking car exhaust pipes with expanding foam in Germany – to serious operations, including an alleged plot to plant explosives on cargo planes bound for the US and Canada.
Richard Moore, head of the UK’s foreign intelligence service, has called Russia’s suspected sabotage campaign “staggeringly reckless.” NATO officials warn that these attacks serve a dual purpose: undermining public confidence in European governments and disrupting military and financial support for Ukraine.
Russia’s shadow war targets Europe’s critical infrastructure
While the Kremlin has denied involvement, authorities across Europe have linked Russian operatives to cyberattacks on politicians and critical infrastructure, sabotage of undersea cables and even an alleged assassination plot targeting the head of a German arms manufacturer supplying weapons to Ukraine.
Some incidents have had potentially catastrophic consequences. Explosive-laden packages detonated at shipping facilities in Germany and the UK, raising fears of a coordinated effort to disrupt Western supply chains. Fires have been set at stores and museums, while European officials accuse Russia and Belarus of using migration pressure at EU borders as a destabilisation tactic.
In response, NATO has launched a mission to protect critical infrastructure, particularly in the Baltic Sea, where power cables and pipelines have been mysteriously damaged. Intelligence-sharing between European nations is also increasing, despite historical barriers to cooperation.
Elisabeth Braw, an expert at the Atlantic Council, notes that while Russia has long engaged in espionage and propaganda, its methods have become “bolder” since the Ukraine invasion. “The way you can weaken a country today is not by invading it,” she told The Associated Press.
Disinformation campaigns undermine Western stability
The Kremlin has also been accused of running extensive disinformation campaigns. According to the Strategic Europe blog, it “pursues a systematic strategy of influencing public opinion and undermining elections in the West.” One high-profile example is the FBI accusing Russia of interference in the 2016 US election that saw Donald Trump elected for his first term. It has long been speculated that earlier that same year, Russia played a pivotal role in the Brexit referendum, aiding the Leave campaign’s victory through online influence operations and covert funding. More recently, last December Romania accused Russia of “massive” and “aggressive” meddling in their presidential election which caused authorities to cancel and reschedule it for May.
While other nations, including China, have also been accused of engaging in espionage and cyber operations, analysts say Russia remains the primary actor behind hybrid attacks in Europe. With NATO facing internal challenges, including tensions over US foreign policy, experts warn that a coordinated response will be essential to counter the growing threat. “If we are to have a chance of stemming the threat,” Braw said, “then we have to work together.”
As authorities continue investigating the Heathrow fire, the incident highlights broader concerns about the resilience of the UK’s infrastructure in an era of increasing geopolitical conflict. Whether this was a tragic accident or a sign of something more sinister, the disruption underscores the vulnerability of essential services – and the need for greater protection against emerging threats.
