William and Kate Attend Final Royal Wedding Rehearsal

Britain's Prince William, centre, his fiancee Kate Middleton and best man and brother Prince Harry arrive for a wedding rehearsal at Westminster Abbey in London Wednesday. Photo by BBC

Prince William and Kate Middleton have attended a private wedding rehearsal at Westminster Abbey, BBC reported.

The one-and-a-half hour event, also involving senior clergy, the bride's parents and best man Prince Harry came ahead of Friday's ceremony.

Gardeners spent the day setting up an "avenue of trees" inside the abbey.

Earlier, up to 1,000 members of the military took part in a full-scale walk-through procession along the wedding route.

Carriages took part in the procession to Westminster Abbey, along with two royal fleet cars.

On Friday the carriage procession will pass along The Mall, Horse Guards Road, Horse Guards Parade, through Horse Guards Arch, along Whitehall, along the south side of Parliament Square and into Broad Sanctuary.

The wedding party set off from Clarence House and arrived at the abbey's precincts at 1930 BST in three silver-coloured people carriers with blacked-out windows, accompanied by motorcycle police and other officers in unmarked Range Rovers.

The convoy drove into Dean's Yard out of sight of a group of spectators but William and his fiancee, along with Harry, were captured leaving the vehicles by some TV crews.

William and Harry were dressed in dark suits but did not appear to be wearing ties and Miss Middleton wore a black jacket and a blue skirt.

A St James's Palace spokesman said: "The couple are attending a private wedding rehearsal at the abbey...

"The rehearsal is for them and the clergy, and others taking part in the service, such as Prince Harry and the Middleton family."

They left the site shortly after 2100 BST.

Miss Middleton's parents, Michael and Carole, earlier left their Berkshire home for the drive to London where they will be staying at the Goring hotel in Belgravia for the next three nights.

They were joined by their daughter Pippa - Kate's maid of honour - and son James.

David Cameron, meanwhile, sent his best wishes to the couple during prime minister's questions in the Commons.

The prime minister told MPs the "whole world" was looking forward to the ceremony.

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