Teams working to rescue a puppy trapped in a badger sett have called off the search.
A massive operation was launched to try to rescue 10-month-old Mitzi, who has not been seen since Saturday.
The Cavalier King Charles Spaniel crossed with a Bichon Frise ran into a hole beneath tree roots in woodland in Ingol, Preston, at the weekend.
A major search was unable to locate the missing pooch, and a decision was taken on Wednesday to stop looking.
Fire crews and the urban search and rescue team, as well as RSPCA bosses, council teams, Lancashire Badger Group representatives and Dyno Rod engineers were on site, desperately searching for Mitzi.
Council experts began digging with a mini digger on Tuesday, and returned to the scene on Wednesday.
But owner Mark Jackson, 46, who had been waiting anxiously in the woodland since the weekend, said: “It was worth one more try today but unfortunately it’s not happened.
“Somebody thought they heard a bit of a murmur last night, that is why we came back today and we tried the thermal imaging camera from Dyno Rod and the camera reel again.
“She could have gone anywhere, the warrens are all over the place so we have made a joint decision to call it off.”
Mark, who lives in Ingol, said: “Not every story has a happy ending.
“I’m sad - it is most upsetting still not knowing where she is.
“I want to say thanks to everybody for all their help - the RSPCA mainly, they have been the best help and done all they can.
“They couldn’t have done any more.
“There’s always a chance someone else has got her, it’s still the unknown.”
He asked anyone who may have seen Mitzi to contact the dog warden.