Sellafield will conduct an emergency exercise this evening after 7.30pm.
Residents in west Cumbria are being warned that the site's siren could be activated and the sound of blank firearms might be heard.
The exercise is designed to test Sellafield’s efficiency in the event of an emergency.
Sellafield is being hit by another wave of industrial action today, with 3,000 GMB union members there on strike - for the third time.Read the full story ›
Firefighters at Sellafield say they will stage a third 12 hour strike later this week.
They've rejected a pay offer which they say would have amounted to an increase of £4.30 a week.
Sellafield has previously said it was a "reasonable offer" and was "disappointed" it was rejected.
The strike, by members of the GMB union, is de to take place on Thursday from 6am to 6pm.
The Unite union, which represents more than 1,000 staff, has called the action, with a further strike planned by the GMB next week.Read the full story ›
Workers at the Sellafield nuclear site are staging a 24-hour strike in a dispute over pay.
More than 1,000 members of the Unite union walked out at 6am this morning in protest at a 1.5% imposed wage increase.
The union accused the company of adopting a "hardline" attitude, orchestrated by the "unseen hand" of the Government.
Regional officer Graham Williams warned that further industrial action could be taken in the run-up to Christmas.
A Sellafield spokesman said: "As always, the safety and security of the Sellafield site, our workforce and the community are our priorities during this industrial action.
"We are working with Cumbria Police and Cumbria County Council's Highways team to try to minimise disruption.
"However, strikes by their nature are designed to cause disruption and people should expect traffic problems while pickets are in place.
"We have taken all steps available to us to minimise disruption including opening all access gates and advising staff on steps they can take to help."
The 24-hour strike is due to start at 6.00am on Tuesday over an 'unacceptable' 1.5% pay offer from Sellafield Ltd.Read the full story ›
Dangerous chemicals stored in a laboratory at the nuclear reprocessing plant have now been detonated by an army bomb disposal team.Read the full story ›
Explosives experts were called to the nuclear reprocessing site in Cumbria, to help deal with chemical substances.Read the full story ›
The 400ft tower at Windscale was on fire for three days, spreading radiation across the UK and Europe, causing over 200 cancer cases.Read the full story ›
Firefighters were due to strike in July, but more time was given to management to put in place a resolution by the end of September.Read the full story ›