Heathrow Airport in London closed all operations due to a significant fire at an electrical substation, resulting in widespread chaos for travelers worldwide. Reports indicate that the fire caused a major power outage, impacting flights and leading to cancellations and reroutes for numerous airlines. Passengers have faced considerable disruptions, with many stranded and separated from their loved ones. Counter-terrorism police have been deployed to investigate the incident as initial assessments suggest extensive financial losses could follow. Eyewitness accounts reveal dramatic scenes as towering flames engulfed the substation. Affected airlines, including Air India and Cathay Pacific, have issued advisories to inform passengers of the ongoing situation. The repercussions of this event could resonate across the globe, affecting travel plans well beyond London.