Spain's High Court said on Tuesday it has confiscated millions of euros worth of property owned by an uncle of Syrian President Bashar Assad and his associates as part of a probe into alleged money laundering.
The swoop comes less than a year after Rifaat Assad, an opponent of his nephew's government, was put under investigation in France for tax fraud and money laundering.
Magistrate Jose de la Mata has ordered the confiscation of holiday homes, car parks, luxury apartments and rural estates in southern Spain worth 691 million euros ($736 million), the High Court said in a statement on its website.
Rifaat Assad's lawyer in France was not immediately available to comment. He previously declined to comment about the French investigation.
French investigators, who suspect Rifaat Assad of acquiring his wealth in France illegally, discovered that he owned real estate in Spanish tourist resorts of Puerto Banus and Marbella.
Other European countries cooperated on the investigation, and legal proceedings started in Spain last December, following a report by the prosecutor's office at the high court.
After being sent into exile from Syria in the 1980s, Rifaat Assad is suspected of using money from state coffers to start accumulating a property empire abroad, the court said.
Spanish authorities seized a total 503 properties including a more than 33 million square meter ranch with a market value of 60 million euros. They also froze dozens of bank accounts.
Some of the assets are registered to Rifaat Assad and companies linked to him, and some to his wives, children and daughters-in-law. The owner of one of the blocked accounts is a Spanish citizen who heads the company that manages most of the Assad family's business abroad.
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