Sellafield site emergency exercise - Wednesday 10 June 2026

The exercise is part of routine testing to ensure robust arrangements are in place to respond to potential incidents on the Sellafield site.

During the exercise, site sirens may be sounded and could be audible in surrounding areas. If you hear the sirens, there is no cause for concern – this will be part of the planned exercise.

Access to and from the Sellafield site will be as normal up until approximately 8am on the morning of the exercise.

People who live close to Sellafield and have signed up to receive automated SMS text, email, and telephone warnings from Sellafield, may be contacted. Any contact will take place before 2pm.

Emergency exercises are held regularly at all nuclear licensed sites to test their readiness in the event of an emergency, and to ensure the continued safety of our workforce, the site and the local community.

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