António Guterres expressed regret and gratitude for the mediator’s efforts. The statement did not specify the health issues; it established no alternative cause.
Köhler had brought Morocco, Polisario, Algeria and Mauritania together at round tables in December 2018 and March 2019. He left without a final agreement. Staffan de Mistura’s appointment on 6 October 2021, already covered in the dossier, would end the vacancy.