Police have widened their search for a missing RAF serviceman amid fears he could have been kidnapped.
Corrie McKeague, 23, has been missing for more than a week after vanishing in Bury St Edmunds, Suffolk.
The RAF, search-and-rescue teams and police helicopters have all been drafted in to help with the search.
His mother Nicola Urquhart told The Sunday Times she fears he may have been abducted, saying it "has been mentioned by the police".
Mrs Urquhart added: "It's looking more and more suspicious as time goes on that they're not actually finding him. It (kidnapping) is something that they're thinking of."
Bury St Edmunds is about 30 miles from RAF Marham, where two men of middle eastern appearance tried to kidnap an RAF serviceman who was out running near the base in July.
Mr McKeague was last seen at about 3.20am on Saturday September 24 and Suffolk police believe he may have been in the area of Mildenhall, a small market town where there is another RAF base about 15 miles north west of Bury St Edmunds, between 4.30am and 8am the same day.
Mr McKeague is described as white, 5ft 10ins, of medium build, with short light brown hair.
Chief Inspector Steve Denham said: "This behaviour is totally out of character for Corrie and we are very concerned for his welfare."
Anyone with information should contact police on 101 or Crimestoppers on 0800 555 111.