POLICE have set up a one-mile exclusion zone around an unexploded bomb on Otmoor.

The live 250lb device, dating from the Second World War, was discovered earlier today on Ministry of Defence-owned land.

Army bomb disposal experts from 11 Explosive Ordnance Regiment, based in Didcot, were preparing to carry out a controlled explosion this evening but were waiting for an air exclusion zone to be put in place over Otmoor due to the size of the bomb.

Insp Paul Beaney, of Thames Valley Police, said: "It's a very rural area and we have excluded the public and there will be a controlled explosion."

He added: "It's a very large device and we have had to apply for an air exclusion zone."

The bomb was found in disused outbuildings on the site, between Beckley and Charlton-on-Otmoor.

The Royal Air Force used to use part of Otmoor as a bombing range from the 1920s until the late 1950s.