THE family of a man missing for more than two years whose case is to be featured by Crimewatch have spoken of their frustration after a hoaxer claimed she was the mother of his son.

Allan Bryant vanished without trace after leaving the Styx nightclub in Glenrothes, Fife, at 2am on November 3, 2013.

His family have long believed he has been murdered but he has never been found.

Last month Police officers launched a fresh search in the Redwood Woods, close to St Andrews and near the Scotland's Secret Bunker visitor attraction, after the woman contacted his family to say that she knew where his body could be found.

She also claimed to have had his child, but his father Allan snr said that no one believes her.

No clues to his son's whereabouts were found during the search of the woods, which was carried out by specialist dog tracking teams and involved probing drainage ditches.

Mr Bryant snr said: "She actually called when the police were here talking to me and said she had information on what had happened to Allan.

"She told us we should search the area around the Hidden Bunker, and told us other things about him.

"The she claimed to have had his son. I'd never heard of her in my life. She's someone that lives outside of Fife."

He added: "I don't believe a word of it. Whether or not she has a son with Allan is something I find very hard to believe, and we're not going to be taking it further."

Family and friends of Mr Bryant, who was 24 when he disappeared, have pushed to keep his case in the public eye and a Facebook page to help the search has 71,000 members.

The campaign has been given a boost after the Crimewatch programme contacted police in Fife for details on the case with a view to featuring it in an upcoming daytime programme on missing people.

It is understood that the segment would feature a reconstruction of the last night he was seen, as well as a fresh appeal from his family for information.

Mr Bryant snr said: "What's happening is that Crimewatch have contacted Fife Police and want to do a daytime show on missing people that features Allan.

"It's really positive that it's going to happen because it keeps Allan in the public eye, and that's all we want.

"We just want that one person to come forward with information because there's someone out there who knows what happened to Allan."

READ MORE: Police widen woodland search for man missing for two years

The family have had their hopes dashed on previous occasions, when information about their son's whereabouts proved to be false.

At one stage they commissioned their own sniffer dog unit to carry out a search following claims Mr Bryant was sighted at party in woodlands later on the night he disappeared, and an area known as Muchty Woods was probed to no avail.

Mr Bryant snr said that he still believed the key to his son's disappearance would be found in Glenrothes.

He said: "We know my son has not gone far. He usually contacted me when he was out to let me know he was ok, and if he didn't have his phone he borrowed someone else's, even if it was at 3am in the morning, which used to drive me mad.

"We believe that whatever has happened to him has happened quite quickly, pretty soon after he left the club.

READ MORE: Police widen woodland search for man missing for two years

"I can't just sit back let it go. I spend all the time thinking about what's happened to him, and you have all these horrific images in your head. It never ends."

A spokesman for Police Scotland confirmed that discussions were ongoing with Crimewatch.