The mother of missing RAF serviceman Corrie McKeague has said new information discovered by police can "only mean one thing".
Police said on Tuesday that the weight of rubbish collected from the 'Horseshoe' - the cul-de-sac which the 23-year-old seen entering but not leaving on the night he disappeared - was 100kg rather than just 11kg as previously thought.
Detective Superintendent Katie Elliott said the search of a landfill site in Milton, Cambridgeshire was "the next logical step to try to find Corrie" after the details of the rubbish collection were clarified.
In a message on the Find Corrie Facebook page, the 22-year-old gunner's mother wrote: "With the weight of the bin that was lifted the night Corrie went missing has been incorrect and the true weight is over 100kg. This can really devastatingly only mean one thing.
"I can only pray that Corrie is found quickly and that we are able to get answers as to how this could have happened.
"Please can I ask everyone on here to try really hard not to speculate just now. Each second waiting to find Corrie is torture enough.
"This page was set up to find Corrie. We still need to do this."
Mr McKeague, who was stationed at RAF Honington in Suffolk, was last seen in Bury St Edmunds in the early hours of 24 September 2016.
CCTV showed him going into the 'Horseshoe' at 3.25am. Later in the day there was a rubbish collection from the area.
It has also been confirmed that a 26-year-old man arrested on suspicion of perverting the course of justice would face no further action.