Estibalis Chavez, 19, said she had not eaten for the past eight days and was living on just water as she camps in a blue tent near the gates to the embassy.

"Are they going to let me die just because they wouldn't give me an invitation to the royal wedding?" Miss Chavez wrote on one of the flyers she has plastered near the entrance to the colonial-style building.

"This is my only dream," read another flyer next to a picture of the smiling royal couple who will marry at Westminster Abbey on April 29.

Miss Chavez, wearing braces, pigtails and glasses, said the late Princess Diana had inspired her campaign.