Police have released a 63-year-old man on bail for the fourth time, until March 11, as they investigate a haul of 400 guns found at a house in Headington, Oxford.

Martin Young, also known as David Young, was arrested in October on suspicion of possessing prohibited firearms following a search of his home in Headington Hill. Detectives confiscated 422 shotguns, 13 rifles and gun parts.