Christian Horner has been released from his role as longtime team principal of Red Bull’s Formula 1 team.

Red Bull did not give a reason for the decision in a statement Wednesday, but thanked Horner for his work and said he will “forever remain an important part of our team history”.

Laurent Mekies of sister team Racing Bulls will replace Horner in his role as team principal and chief executive of the racing team.

Horner had been Red Bull team principal since it entered F1 as a full constructor in 2005. He had performed his team and media duties as normal throughout the British Grand Prix last week.

Horner oversaw eight F1 drivers’ titles — four for Sebastian Vettel and four for Max Verstappen — and six constructors’ titles during his time with the team.

But McLaren have dominated this season in F1, while Red Bull’s performance has dipped, though Verstappen remains third in the standings and the team is fourth.

Horner spent much of last week fielding questions over Verstappen’s future at the team after the Dutch driver declined to commit to stay with Red Bull for 2026.

“We would like to thank Christian Horner for his exceptional work over the last 20 years,” Oliver Mintzlaff, Red Bull’s chief executive for corporate projects and investments said in a statement.

“With his tireless commitment, experience, expertise and innovative thinking, he has been instrumental in establishing Red Bull Racing as one of the most successful and attractive teams in Formula 1. Thank you for everything, Christian, and you will forever remain an important part of our team history.”