Heathrow Terminal 4 Evacuated Over Hazardous Materials Alert

On Sunday evening, Heathrow Airport's Terminal 4 was evacuated due to a suspected hazardous materials alert, prompting a swift response from specialist fire crews and emergency services. Passengers inside the terminal were evacuated calmly, with no injuries reported, while flights and other terminals at Heathrow continued operating normally. The incident caused disruption to rail services, as National Rail suspended train stops at Terminal 4 during the emergency. About 20 individuals were evaluated by paramedics, but the exact nature of the suspected hazardous substance remained unidentified during the response. By Monday, the terminal was cleared and the check-in area reopened after thorough assessments by emergency teams, allowing normal operations to resume. Authorities emphasized the evacuation was precautionary, and overall airport functionality was maintained despite the temporary closure and disruptions.