Heathrow Terminal 4 evacuated after 'hazardous materials incident'

Heathrow Airport’s Terminal 4 was evacuated on the evening of September 8, 2025, following a possible hazardous materials incident that prompted a major emergency response. Firefighters and specialist crews from multiple stations, including Feltham, Heathrow, and Wembley, were dispatched after the London Fire Brigade received the call at 5:01 pm. As a precaution, Terminal 4’s check-in area was closed, and passengers were advised not to travel there, although all other terminals at Heathrow remained operational. Emergency services supported passengers on site, and National Rail services suspended stops at Terminal 4 due to the incident. Social media posts from evacuated passengers showed emergency blankets being distributed amid dropping temperatures, but there was limited official communication regarding the nature of the incident or the expected duration of the disruption. Unverified reports and online speculation suggested possible illnesses and theories ranging from a terrorist attack to pepper spray use, but authorities have not confirmed any such details. Despite the evacuation, Heathrow’s flight schedule for Terminal