The US authorities have ordered Goldman Sachs to hand over documents related to its dealings with Malaysia's 1Malaysia Development Berhad, according to the Wall Street Journal.

Citing unnamed sources, the paper claims that the Department of Justice and Securities and Exchange Commission issued the subpoenas. It also alleges that they want to interview current and former Goldman employees.

Goldman Sachs is also giving information to the Monetary Authority of Singapore, which is investigating financial transactions involving 1MDB.

The US authorities are examining Goldman's role in a series of bond sales it managed for 1MDB. Some $2½ billion of the proceeds from those offerings was diverted from 1MDB to shell companies controlled by influential figures in Malaysia and Abu Dhabi, the DoJ alleged last week.

The latest development comes after the Monetary Authority of Singapore said that it found serious shortcomings relating to money laundering controls and other practices at UBS, Standard Chartered, Falcon Private Bank and DBS. A few weeks ago, it also revoked the merchant banking license of BSI Bank (Singapore) for "gross misconduct" in its AML efforts.

Last week 1MDB said that its accounts for 2013 and 2014 could not be relied upon until further notice.

It was reported last week that a former Hong Kong-based investment fund, Primus Pacific Partners, issued a writ against Goldman for its part in 'advising' a Malaysian bank merger in 2011. Goldman has decided to fight the lawsuit, noting that Primus had lost a court case over the merger in the Malaysian courts in 2011.