"I don't know how I am coping. I don't want to think about that. I am just focused on the girls," Paul Ansell said.

He added that he kept playing "every scenario" in his head "around and around" following the disappearance of Ms Bulley.

"Every single scenario comes to a brick wall," he said.

"It is as though she has vanished into thin air."

Mr Ansell also thanked the local community for their "amazing" support.

Mother-of-two, Ms Bulley was last seen walking her dog down a footpath by the River Wyre in St Michael's on Wyre on the morning of Friday 27 January.

On Thursday her heartbroken sister Louise Cunningham told Sky News "it feels like I'm just stuck in a nightmare".

In the interview, her family made an emotional appeal to anyone who may have seen her or knows where she is to come forward and speak to police.