David Jones, who heads up the SFO’s press office, told Amateur Photographer: ‘The situation is that the investigation is ongoing.’

Olympus whistleblower Michael Woodford, who was based in Japan, was sacked in October 2011 after raising suspicions over $687 million in advisory fees paid in connection with Olympus’s acquisition of UK medical firm Gyrus in 2008.

Jones confirmed that the SFO continues to make enquiries regarding ‘allegations connected with Olympus’, but did not elaborate.

The SFO launched its investigation after Woodford submitted documents to its offices in London shortly after he was dismissed.

Last year, former Olympus president Tsuyoshi Kikukawa pleaded guilty in connection with the accounting scandal, along with former executive vice-president Hisashi Mori and Hideo Yamada, a former Olympus auditor.