Due to a fire at an electrical substation supplying the airport, Heathrow is experiencing a significant power outage.

To maintain the safety of our passengers and colleagues, Heathrow will be closed until 23h59 on 21 March.

Passengers are advised not to travel to the airport… pic.twitter.com/7SWNJP8ojd

— Heathrow Airport (@HeathrowAirport) March 21, 2025

BREAKING 🚨London Heathrow Airport has been closed after a massive fire at an electrical substation in nearby Hayes caused widespread power outages.
pic.twitter.com/KpGar3Mpoe

— Kale Reeves (@kalereever) March 21, 2025

🔥حريق ضخم في لندن يشلّ مطار هيثرو بالكامل

🔥أفادت تقارير إعلامية بأن حريقًا هائلًا اندلع في محطة كهرباء هايز بلندن، ما أدى إلى انقطاع واسع في التيار الكهربائي وإخلاء المنطقة، متسببًا في شلل تام بمطار هيثرو، أكثر مطارات المملكة المتحدة ازدحامًا. pic.twitter.com/OZ8mIyg6ZL

— Sputnik Arabic (@sputnik_ar) March 21, 2025

🚨 BREAKING: Heathrow Airport says it will be closed all day due to significant power outage caused by a fire at a nearby electrical substation

“We expect significant disruption over the coming days and passengers should not travel to the airport under any circumstances” pic.twitter.com/jeqEqb8BX6

— Politics UK (@PolitlcsUK) March 21, 2025

بالفيديو والصور-  #مطار_هيثرو في #لندن مغلق حتى منتصف الليل... بسبب حريق!
القرار جاء "حفاظاً على سلامة مسافرينا وزملائنا"https://t.co/QRpViMKJeg pic.twitter.com/BLTOXoWB5S

— Akhbar Al Yawm (@akhbaralyawm) March 21, 2025

Heathrow Airport is CLOSED for at least 24 hours: Fire causes chaos for travellers https://t.co/6R5gEmmVw5

— Mail+ (@DailyMailUK) March 21, 2025