Members of the public should always remain alert to the danger of terrorism and report any suspicious activity to the police on 999 or the anti-terrorist hotline: 0800 789 321. If your information does not relate to an imminent threat, you can also contact MI5 via the How you can help us page.
Current threat from international terrorism
Current threat from Northern Ireland-related terrorism
The threat level for Northern Ireland-related terrorism is set separately for Northern Ireland and Great Britain (England, Wales and Scotland).
What the threat levels mean
Threat levels are designed to give a broad indication of the likelihood of a terrorist attack.
- LOW means an attack is unlikely.
- MODERATE means an attack is possible, but not likely
- SUBSTANTIAL means an attack is a strong possibility
- SEVERE means an attack is highly likely
- CRITICAL means an attack is expected imminently
Threat level history
Since 2006, information about the national threat level has been available on the MI5 and Home Office websites. In September 2010 the threat levels for Northern Ireland-related terrorism were also made available.
|Date||Threat from international terrorism||Threat from Northern Ireland-related terrorism|
|in Northern Ireland||in Great Britain|
|29 August 2014||SEVERE||SEVERE||MODERATE|
|24 October 2012||SUBSTANTIAL||SEVERE||MODERATE|
|11 July 2011||SUBSTANTIAL||SEVERE||SUBSTANTIAL|
|24 September 2010||SEVERE||SEVERE
|22 January 2010||SEVERE|
|20 July 2009||SUBSTANTIAL|
|4 July 2007||SEVERE|
|30 June 2007||CRITICAL|
|13 August 2006||SEVERE|
|10 August 2006||CRITICAL|
|1 August 2006||SEVERE
- Current international terrorism threat level: SEVERE (UK-wide)
- Threat comes principally from Al Qaida and related networks; and the Islamic State of Iraq and Levant (ISIL)
- Current Northern Ireland threat level: SEVERE (in NI), MODERATE (in Great Britain)
- Northern Ireland-related terrorism is still a threat but more so in NI than in GB