Posted in News Incident at Heathrow Airport that saw terminal evacuated was caused by ‘mass HYSTERIA’, sources say: Passenger panic leaves more than 20 people needing medical treatment amid fears of chemical leak September 9, 2025 A ‘possible hazardous materials incident’ saw Terminal 4 shut for around three hours shortly after 5pm on Monday, forcing crowds of people to gather outside while emergency crews rushed to the scene. https://www.dailymail.co.uk/news/article-15078171/Heathrow-Airport-terminal-evacuated-closed-incident.html?ns_mchannel=rss&ns_campaign=1490&ito=1490