JOHANNESBURG — South Africa's top police officer says officers arrested the adult son of a Danish woman suspected of a huge fraud at home, as he was about to leave the country with two diamonds in his luggage.

Police minister Bheki Cele said Britta Nielsen, was arrested in Johannesburg Monday and had 648,700 rand in cash ($46,000) in her possession which was confiscated.

Cele said Tuesday that her son, Jimmy Hayat, was arrested Oct. 30 at Johannesburg's international airport. His case is scheduled to be heard Thursday, the same day that Nielsen is to appear in a different court in connection with her extradition to Denmark.

Nielsen, 64, is the main suspect in a fraud case that caused a Danish government welfare agency to lose at least 111 million kroner ($17 million).