A fire at Hayes substation, caused a major power outage, closing Heathrow Airport until midnight. 70 firefighters tackled the blaze, evacuating 150 people and cutting power to 16,000+ homes. Passengers are advised not to travel to the airport.#UK #London pic.twitter.com/F4L7rjzxii

— GeoTechWar (@geotechwar) March 21, 2025