Terrorism and national emergencies

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1. Terrorism threat levels

The threat level indicates the likelihood of a terrorist attack in the UK.

National threat level

The threat to the UK (England, Wales, Scotland and Northern Ireland) from terrorism is substantial.

The threat to Northern Ireland from Northern Ireland-related terrorism is substantial.

Threat levels

There are 5 levels of threat:

  • low - an attack is highly unlikely
  • moderate - an attack is possible but not likely
  • substantial - an attack is likely
  • severe - an attack is highly likely
  • critical - an attack is highly likely in the near future

The level is set by the Joint Terrorism Analysis Centre and the Security Service (MI5).

Threat levels do not have an expiry date. They can change at any time as different information becomes available.

More information about terrorist threat levels

Get more information about terrorism threat levels in the UK on the MI5 website.

You can also check the government’s travel advice for different countries.

2. Counter-terrorism

The Security Service (MI5) is responsible for protecting the UK against threats to national security.

The Office for Security and Counter-Terrorism coordinates the government’s response in case of a terrorist incident.

Counter-terrorism laws are enforced by the police.

Public safety

The government will issue a warning to the public if that’s the best way to protect a community or a place facing a specific threat.

3. Reporting suspected terrorism

If you suspect someone is involved in terrorism in any way:

You can remain anonymous.

4. National emergencies

National Risk Register

The government regularly assesses the natural hazards and man-made threats that could affect the UK.

These are published in the National Risk Register. This explains the likelihood of a risk occurring and possible effects of an emergency if it happens.

Local and central government preparations

Your local council, fire, police and ambulance services and other organisations take part in regular training exercises to prepare for emergencies.

Find out how emergencies are planned for in your area.

You can also read guidance for local councils on recovery after an emergency.

There are also government plans to make sure essential services, like food, water, transport, health and financial services, keep working in the event of an emergency.