ALBAWABA- London’s Heathrow Airport evacuated and closed Terminal 4 on Monday evening after emergency services responded to a suspected hazardous materials incident. The alarm was raised at 17:01 BST, prompting London Fire Brigade to dispatch crews from multiple stations, including specialist units conducting precautionary assessments. Terminal 4 check-in has been closed and evacuated while emergency services respond to an incident. Please do not travel to Terminal 4, colleagues are supporting ...