The pair have had their worldwide assets frozen after the High Court handed down a $750 million (£470 million) civil judgment against them, according to reports today.
The Gokal brothers’ Gulf Group was the biggest debtor of the failed bank, which was closed down in 1991.
Mustafa Gokal was a minister in the government of the Pakistani dictator General Zia between 1977 and 1980, and he and Murtaza are resident in Pakistan.
A confiscation order has already been served on Abbas, who is serving a 14-year sentence in Whitmore prison.
Creditors of the failed bank are already set to receive more than 50p in the pound following the settlement with the bank’s biggest shareholder, the Sheikh of Abu Dhabi.
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