Borussia Dortmund has fired Peter Bosz as manager after their winless run was extended to 12 matches in all competitions.

Dortmund’s chief executive, Hans-Joachim Watzke, said: “Last night, in a conversation with Peter Bosz, we decided that we would release him with immediate effect. It was very emotional, but also respectful. On behalf of all at Borussia, I would like to thank Peter Bosz. We still consider him a great coach and person.”

Bosz was hired by Dortmund this past summer.

The club announced that the former Cologne manager Peter Stöger would take charge of the team until the end of the season. “I’m really happy to be coach of this team and to be in this stadium,” Stöger said.