MILTON KEYNES, England: Red Bull says Christian Horner has been released from his role as longtime team principal of its 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.