About 80 Royal Marines from Alpha Company are due to land at RAF Brize Norton at about 2pm. They'll then be transported to Norton Manor Camp near Taunton by coach, greeting friends and family at around 6pm.
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The Ven Ruth Worsley, Archdeacon of Wilts, is to be the next Bishop of Taunton in the Diocese of Bath and Wells.
Police evacuated hundreds of homes in the city following the discovery of two suspect packages.
A large part of Exeter city centre has been evacuated following the discovery of two suspicious packages