Egypt cracks down on associates of 'tortured' businessman
According to the interior ministry, security forces raided a flat owned by Othman in Giza province, southwest of the capital Cairo, where he was hiding $8,400,000 along with other foreign currencies in a hidden safe as well as a stash of ammunition.
It was not immediately clear whether Othman was arrested in the raid or had been detained beforehand.
Thabet tasked Othman with exploiting the former's company in transferring and concealing the group’s funds in a bid to circumvent the legal procedures taken to freeze its assets, the statement said.
Thabet, the Juhayna Industries major shareholder and CEO, had been detained in December last year over terrorism-related charges. His son, Seif, who took over the company, was also arrested two months later over similar accusations.
The two men were accused of allegedly being involved in financing a terrorist group - commonly a reference to the Muslim Brotherhood.
The Thabet family have denied any wrongdoing in statements posted on social media.
Such charges have been widely deployed in a crackdown that has swept up dissidents from across the political spectrum, and are now being used to target businesspeople, Amnesty said.
Authorities have yet to disclose evidence for the alleged affiliation, the watchdog added.
Thousands of Muslim Brotherhood members are currently behind bars, with hundreds either executed or handed down prison sentences, while many others are in self-imposed exile outside the country following the military coup that overthrew the rule of late Islamist president Mohamed Morsi in July 2013.