The Serious Fraud Office (SFO) says it has frozen $100m of assets in London, connected with Sir Allen Stanford's suspected $7bn fraud.
A number of accounts held at "certain London financial institutions" were frozen by the SFO following a request from the US Department of Justice, the BBC reports.
These funds were allegedly acquired in connection with Stanford's supposed fraud scheme, according to the SFO.
The assets were frozen in April, but kept secret until after his arrest.
Stanford was taken into custody after surrendering to FBI officers earlier this month. He has pleaded not guilty to fraud conspiracy and obstruction in court.
Assets will continue to be frozen pending the outcome of the criminal proceedings in the US.
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