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SCOTLAND Yard detectives have flown to Barcelona to probe a theory that Madeleine McCann was taken to the Spanish resort.

The move follows a review of the four -year-old case, triggered by an emotional plea from the abducted girl's parents Kate and Gerry in The Sun.

A sighting of a suspicious Victoria Beckham lookalike in Spain after three-year-old Madeleine vanished is being examined by British cops. 

Three officers went to Barcelona to request a new look at evidence - some of it suggesting Maddie, three, may have been whisked there after her abduction in Portugal in 2007.

It is understood files being re-examined include a report by a British stag party group who were in Barcelona that a woman asked: "Are you here to deliver my new daughter?" 

The well-dressed woman was said to resemble Posh Spice Victoria and to have an Australian or New Zealand accent.

She also spoke fluent Spanish - and was described by the men as "agitated".  

 One of the Britons approached the woman - aged between 30 and 35 - after seeing her pacing up and down anxiously outside a bar. 

She repeated the question twice and was later seen in a heated conversation with a man.

She was described as slim, 5ft 2ins and with short brown hair.  

Private detectives employed by the McCann family have always believed the incident could be significant.

The Spanish border is an hour from where the McCann family were staying in the Algarve resort of Praia da Luz.

The three-day Barcelona visit by cops came at the end of last month.

It was part of a review of the case by a Metropolitan Police homicide team of around 30 detectives.

Portuguese police closed the case. But PM David Cameron approved a British review after Maddie's parents Kate and Gerry, of Rothley, Leics, asked in an open letter in The Sun for files to be re-opened.

The Operation Grange squad, led by Det Chief Inspector John Redwood, has also visited Portugal three times.

Met chiefs stressed yesterday that no specific new information has been found.

A McCann spokesman said: "Kate and Gerry welcome the continuing work of the Metropolitan Police and are pleased the review is making progress