London's Heathrow Airport T-4 shut over possible hazardous materials incident

London Heathrow Airport's Terminal 4 faced disruption on Monday due to a potential hazardous materials incident, leading to its closure and evacuation. Airport authorities promptly alerted the public via social media, advising passengers to avoid traveling to Terminal 4. Emergency services are on-site addressing the situation, while other terminals continue normal operations, with updates to follow.