MACC chief commissioner Azam Baki said the investigation process in relation to the asset in question was ongoing.

“At the same time, the public has been asked not to speculate on the case,” he said in a statement.

Earlier today, Rohana, who was said to have been involved in a 10-year relationship with Leissner, was reported to have agreed to return US$10 million, according to an MACC source.

Utusan Malaysia reported that MACC was “actively obtaining” the money after she agreed to hand over “assets Leissner had given her” that was purchased using 1MDB-linked funds.

Leissner, a prosecution witness, told the US trial of former Goldman Sachs banker Roger Ng that he bought Rohana a US$10 million house in London in 2013 after she threatened to expose his involvement in 1MDB.

His testimony prompted MACC to take a statement from Rohana in February after she expressed readiness to assist the authorities in the investigation.

Leissner, Ng’s boss at Goldman, had pleaded guilty to charges of conspiring to launder money and violating an anti-bribery law in 2018. He agreed to cooperate with the US government.

Ng was convicted by a US jury last week of conspiring to violate an anti-corruption law to help loot hundreds of millions of dollars from 1MDB.