The wife of an international banker has lost her challenge over the UK's first unexplained wealth order (UWO) at the highest court in the country.

The Supreme Court dismissed the application by Zamira Hajiyeva, who owns Mill Ride Golf Club in Ascot, to overturn two UWOs, brought against her by the National Crime Agency (NCA).

The NCA secured the orders against Mrs Hajiyeva in February 2018 in respect of two properties with a combined value in excess of £22 million.

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One order relates to a property in Knightsbridge, central London, which was purchased for £11.5 million in 2009 by a company incorporated in the British Virgin Islands.

The second relates to the purchase of the golf club in Berkshire.

Mrs Hajiyeva, who spent more than £16 million at Harrods in a decade, previously attempted to overturn the UWOs at the Court of Appeal and the High Court but both appeals were dismissed.

She was the first person to be made subject to a UWO, a new power brought into force in January 2018 under so-called McMafia laws - named after the BBC organised crime drama and the book which inspired it.

A UWO allows the NCA to seize someone's assets if they believe the owner is a politically exposed person (PEP) - someone from outside the European Economic Area in a position of power that makes them liable to bribery or corruption - and they are unable to explain the source of their wealth.

The decision by the Supreme Court relates to the UWO that requires Mrs Hajiyeva to provide information in connection with the house in Knightsbridge.

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Graeme Biggar, director general of the National Economic Crime Centre at the NCA, said the case would set a "helpful precedent" for future cases.

"This is a significant result which is important in establishing Unexplained Wealth Orders as a powerful tool for financial investigations," he said.

"This was the first UWO secured and the NCA has been determined throughout the many legal challenges faced over the last two years.

"This case will set a helpful precedent for future UWO cases.

"There are no further routes for Mrs Hajiyeva to appeal against the order.

"She will now be required to provide the NCA with the information we are seeking in connection with these assets."