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
A photographer from North Devon has recreated Nirvana's iconic album cover with the same model - 25 years on.
Bristol golfer Chris Wood says he'll thrive in the tense Ryder Cup environment once he steps onto the tee for the first time on Friday.
There's a warning that fraudsters and thieves in the West Country are increasingly targeting the elderly and vulnerable.