London [UK], November 4 (ANI): The Joint Terrorism Analysis Centre (JTAC), an MI5-affiliated intelligence office responsible for the assessment of UK terror threat levels, raised it to "severe" from "substantial" nationwide.
London [UK], May 24 (ANI): The UK terror threat level has been raised to its highest level from severe to 'critical' after the Manchester Arena bombing that claimed 22 lives and injured several others, signifying that another attack may be imminent.