The woman in the Christian Horner controversy has lodged a formal complaint with F1's governing body, the FIA, about his behavior.
BBC Sport has learned that a complainant accusing the Red Bull team principal of inappropriate behavior has lodged a complaint with the FIA's Ethics Committee.
Horner, 50, has always denied the accusations against him.
The woman's action followed two whistle-blowing cases registered with the FIA in the past few weeks.
BBC Sport reported that on February 2, a report was received by the FIA's Ethics and Compliance Hotline directly addressing Horner's behavior towards female employees, asking the FIA to investigate and raising concerns that Red Bull may be trying to cover up. I learned that he had expressed his concerns. Up it.
The second complaint, dated March 6, referred to the first complaint and warned that the whistleblower would then report to the media.
The FIA has not responded to requests for comment on all these matters.
A Red Bull Racing spokesperson said they were not aware of the complaint and would not comment further.
The woman's formal complaint to the FIA follows her decision to appeal the dismissal of the complaint by Red Bull.
She plans to ask Red Bull to reconsider its decision, which was made following an investigation by its lawyers.
Last week, Red Bull suspended her from her role with the team.
The accusations against Horner came to light in early February, but the investigation into his actions began nearly a month earlier. According to Red Bull, it lasted 10 weeks.
Red Bull has appointed external lawyers to investigate the allegations. After his report was submitted to the company's board of directors, the company decided to dismiss his charges.
The next day, a cache of messages purporting to involve Horner was leaked to nearly 150 senior F1 officials and the media.
Horner said it was “time to draw a line” in the controversy.
Red Bull declined to disclose details of the incident, citing confidentiality.
BBC Sport previously reported that the reason Red Bull gave the employee was her dishonesty.
Horner said at last weekend's Saudi Grand Prix: “The reality is that a complaint was raised and it was dealt with in the most professional manner by the group that appointed the most reputable independent KC in the land.”
“He took the time to look at all the facts. He considered everything and came to the conclusion to dismiss the complaint.
“As far as I'm concerned, as far as Red Bull is concerned, we move forward.”
The dispute is at the center of a power struggle within Red Bull, with Mr Horner, motorsport advisor Helmut Marko, the team's three-time world champion Max Verstappen and his father Jos, and Verstappen's manager Raymond・Mr. Vermeulen and the company's two owners are involved.
Last weekend, Max Verstappen's intervention helped prevent Marko's sacking.
Charelm Youvidya, a 51% shareholder, backed Horner and forced Austria's Red Bull, a 49% shareholder, to withdraw its intention to oust him.
