A four day protest is expected to begin this morning outside the Government's monitoring centre, GCHQ in Cheltenham.
Police say they may close Hubble Road around the site to deal with the planned protest by the UK Anonymous group. The action is taking place against surveillance of the public by UK and foreign Governments.
Cheltenham Police are asking any residents with access problems to contact them on the day.
More top news
Despite the rumours, Somerset's Jenson Button announced he's staying in Formula 1. We take a look back at how he became World Champion.
The wife of a high-ranking Army officer has called on the Ministry of Defence to ban an anti-malaria drug linked to mental health problems.
It was hyped up as one of the biggest shopping days of the year - but many people stayed away from city centres, going online instead.