Prince William greets well-wishers before wedding

(CBS) Prince William took an impromptu walk down to The Mall to greet fans gathered there on the eve of his wedding to Kate Middleton.

The 28-year-old spent several minutes shaking hands, chatting and posing for pictures with royal watchers near Buckingham Palace, according to BBC News.

Pictures: London prepares for royal wedding
Pictures: Prince William and Kate Middleton
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Earlier, Prime Minister David Cameron also visited fans camped out on the Mall, as did William's stepmother, Camilla, Duchess of Cornwall.

"We're all ready for tomorrow, it's wonderful and we're all very excited," Camilla told a spectator when asked how she was feeling.

William and Middleton said in a message in their official wedding program that they were "incredibly" moved by the affection shown to them since their engagement was announced.

"We are both so delighted that you are able to join us in celebrating what we hope will be one of the happiest days of our lives," reads the statement. "The affection shown to us by so many people during our engagement has been incredibly moving, and has touched us both deeply. We would live to take this opportunity to thank everyone most sincerely for their kindness."