Woman sought in hunt for Madeleine

Investigators for the family want to trace a Victoria Beckham-lookalike who asked a witness at a Spanish marina if he was there to deliver her "new daughter", just days after the little girl's disappearance.

The well-dressed woman was described as possibly having an Australian accent and appeared agitated.

A spokesman for the New South Wales Police Force said: "Detectives have received information about a woman who is similar in description of the woman being sought by private investigators examining the disappearance of British child Madeleine McCann.

"A Sydney woman provided a formal statement to detectives at a Sydney police station. She claims to know the identity of the woman being sought by the private investigators attached to the McCann family. New South Wales Police Force will forward the information received to the Australian Federal Police for follow up."

The McCann family's private detectives are following up more than 600 calls and emails, including many which investigators describe as "viable leads", spokesman Clarence Mitchell said.

Asked about reported attempts to trace a motor boat said to have been in the marina in Barcelona at around the time the woman was sighted, he said: "The investigators will follow the evidence wherever it takes them. Vessel movements are just one area of the current inquiry."

Mr Mitchell added that many of the callers had passed information directly to the police in Australia and that he was aware of reports that a woman in Sydney had given police a formal statement saying she knew the identity of the woman.

"All the information received, including the reported statement from a woman in New South Wales, is being passed on to investigators and we will be in touch with the Federal Police (in Australia) in due course," he said.

Madeleine was nearly four when she went missing from her family's holiday apartment in Praia da Luz in the Algarve on May 3, 2007 while her parents dined with friends nearby.