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• The FCA has appointed board member Lea Paterson to review its handling of Andriesz.
• The regulator previously apologised after giving him incorrect advice about whistleblower protection.
• MPs are calling for an independent investigation rather than an internal FCA review.

The UK's financial regulator has launched an investigation into how it handled a whistleblower who raised concerns about his former employer and later highlighted alleged business links between US commerce secretary Howard Lutnick and convicted sex offender Jeffrey Epstein.

Simon Andriesz, a former managing director at financial brokerage BGC Group, died last month aged 57. His death was confirmed by the Transparency Task Force, a campaign group of which he was a member. Reports have described his death as suicide, but there has been no suggestion that his whistleblowing was the cause.