Red Bull's investigation into "inappropriate behaviour" against the Formula One team principal Christian Horner has now suspended his accuser.

Horner, 50, was allowed to remain in his role after Red Bull Racing's parent company GmbH said last Wednesday that the grievance against him had been dismissed.

It is understood he complainant, an employee of the Milton Keynes team, has now been suspended on full pay.

A Red Bull Racing spokesperson said: "We are unable to comment as it is an internal matter."

Horner, who has always denied the claims made against him, is due to back in the spotlight in an official FIA press conference at 6:30pm local time (3:30pm GMT) in Saudi Arabia on Thursday.

Following last weekend's season-opening race in Bahrain, Horner said he was "absolutely confident" he would stay on as Red Bull boss for the remainder of the season.

It is understood the female member of staff, who is believed to have reported for work on Monday, has been suspended as a direct of result of Red Bull's inquiry.

The complainant is believed to have received a legal letter at the beginning of this week, and now has five working days to appeal the outcome of the investigation which has cast an enormous shadow over Red Bull and the sport.

A statement from Red Bull GmbH last Wednesday read: "The independent investigation into the allegations made against Mr Horner is complete, and Red Bull can confirm that the grievance has been dismissed.

"The complainant has a right of appeal.

"Red Bull is confident that the investigation has been fair, rigorous and impartial.

"The investigation report is confidential and contains the private information of the parties and third parties who assisted in the investigation, and therefore we will not be commenting further out of respect for all concerned. Red Bull will continue striving to meet the highest workplace standards."