<h1>Heathrow Airport Shutdown: Power Outage from Electrical Fire Cancels 1,350 Flights, Sparks Infrastructure Concerns</h1> Hundreds of thousands of passengers experienced flight cancellations as a fire at an electrical substation led to a power outage and closure of London's Heathrow Airport, Europe's busiest travel hub. The incident affected over 1,350 flights, including several from the US. Analysts raised concerns about the UK's infrastructure resilience, while European airline shares fell. The British government called for a thorough investigation, though no foul play is suspected. The fire, now under control, caused widespread disruption, with airlines like Lufthansa and Air India suspending flights. Passengers are advised to contact airlines for rebooking options. Nearby airports may reroute stranded travelers.