MPs have called for an investigation into the treatment of whistleblowers by the UK's financial regulator following the death of Simon Andriesz, a former senior employee of BGC Partners who had raised concerns about the firm's founder, US Commerce Secretary Howard Lutnick.
Andriesz died in Thailand on 23 September. His family said he took his own life and that there was no suggestion of foul play.
Earlier this year, Andriesz raised concerns with the Financial Conduct Authority, the FBI and other watchdogs about evidence he had uncovered of business links between Lutnick and Jeffrey Epstein, the late sex offender. The evidence cast doubt on Lutnick's public statements about his associations with Epstein, the BBC reports.
A group of MPs said Andriesz's death raises "deeply troubling questions" about the way whistleblowers can be treated when they approach the FCA with concerns about wrongdoing and subsequent retaliation.
According to the BBC, Andriesz had uncovered evidence that Lutnick sought to "buy a prince", offering in 2013 to go into business with Prince Andrew and use the former prince's contacts to attract investments, in exchange for a loan of £1m.
Lutnick founded and ran BGC Partners, the international firm of financial brokers, before his appointment as US commerce secretary by President Donald Trump.