The woman who accused Red Bull team principal Christian Horner of innapropriate behaviour has lodged an official complaint with Formula 1's governing body, the FIA.
Allegations against Horner came to light in early February, after Red Bull launched an investigation into him in January.
Horner has always denied the accusations made against him.
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Red Bull appointed an external lawyer to investigate the claims, and the complaint was subsequently dismissed.
Last week, Red Bull suspended the accuser from her role with the team.
According to BBC Sport, she has now registered a grievance with the FIA's ethics committee following her decision to appeal against Red Bull's dismissal of her complaint.
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Two other whistleblower complains have been registered with the FIA in recent weeks.
According to BBC Sport, the first was made directly to the FIA ethics and compliance hotline on 2 February and made direct reference to Horner's behaviour towards a female employee.
The second complaint on 6 March warned that the whistleblower would next inform the media.
Neither Red Bull nor the FIA have not commented on the matter.
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Featured Image Credit: GettyTopics: Formula 1, Red Bull Racing