Updated at 9.44pm

Pilatus Bank whistleblower Maria Efimova spent three hours in a Greek police station on Monday afternoon, filing a report claiming she that had been threatened.

In a tweet on Monday morning, the Russian national shared a story reporting that her former bank boss had been released on bail in the US, and wrote: "Several hours he is out of jail and threats have already started. Going to file a report with Greek police right now." When contacted, Ms Efimova declined to comment on the nature of such threats, saying she first had to speak to a lawyer and to the police. 

Pilatus owner Ali Sadr Hasheminejad, who was arrested in March and charged on several counts of breaching sanctions against Iran as well as with bank fraud and money laundering, was granted bail by a New York court over the weekend.

Ms Efimova was behind allegations that the Panama company Egrant was owned by the Prime Minister’s wife, Michelle Muscat. The claim, which was first relayed by slain journalist Daphne Caruana Galizia, is strongly denied by the Muscat family. 

Ms Efimova fled the island in June after informing the courts about purported intimidation attempts against her family in Russia.

The Russian whistleblower is facing fraud charges in Malta on the basis of a criminal complaint filed by Pilatus Bank.

A European and international arrest warrant was issued by the Maltese courts shortly after she left the island.

Ms Efimova is currently in Greece after the courts there ruled against extraditing her to Malta.

READ: Muscat, Caruana Galizia sons react as Greek court decides against extradition of Pilatus whistleblower

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