IT is two months today since teenager Jenny Nicholl walked out of the door of her family home and vanished.

Police last night vowed that there would be no let-up in their search for the popular and apparently happy 19-year-old.

Her disappearance has sparked much speculation in an investigation that has uncovered few leads.

Her distraught parents have not seen Miss Nicholl, of Richmond, North Yorkshire, since she left on Thursday, June 30, and her case continues to baffle detectives.

At first, police thought she may have run away to Scotland or the Lake District but, more recently, fears she may no longer be alive were aired publicly for the first time.

Police said that there was no evidence she has suffered an accident or has come to harm.

Detective Inspector Pete Martin said: "The search goes on - there will be no let-up.

"Detective work, physical searches and appeals for help from the public will all continue."

Det Insp Martin said Jenny's family was desperately worried for her safety, and said that it was out of character for her to go away without telling anyone.

From the start, the police investigation has centred on the countryside around the market town of Richmond.

Miss Nicholl was seen camping on moors between the villages of Hudswell and Downholme days before she disappeared, and her white Rover 214i car was found abandoned at the nearby Holly Hill Inn.

Detectives and mountain rescue experts have since carried out numerous searches of the Ministry of Defence land.

Police have been reluctant to disclose details of the case, which has added to the mystery.

Four weeks after she disappeared, a middle-aged man was found hiding in a crudely constructed shelter on the moors.

It is understood he was involved in a relationship with the teenager and was previously questioned by detectives.

In another unexplained incident, a 46-year-old man was questioned by police officers and later released after he was arrested for allegedly attempting to pervert the course of justice.

Miss Nicholl's friends describe her as a friendly, popular and sociable young woman, well known in pubs around the town.

At the weekend, one drinker told how he remembered the teenager for often sporting a "red moustache" after drinking her favourite drink of Diesel -a mixture of lager, cider and blackcurrant.

Her many friends and acquaintances remain hopeful she will still be found safe and well.

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