Irish Dissidents in London Bomb Threat

Authorities in London are on high alert due to a bomb threat from dissident Republicans, using a recognized code word. The threat, coinciding with the Queen's visit to Ireland, lacks specific details but has prompted a significant security operation involving 9000 police and army personnel. While dissident groups have been active in Northern Ireland, their capability to strike elsewhere in the UK remains uncertain. The threat level is unchanged, but vigilance is urged.

What concerns were raised regarding dissident groups and their capabilities?

What actions were taken to ensure public safety in response to the threat?