KAZAN Russian President Vladimir Putin (R) greets United Nations (UN) Secretary General Antonio Guterres during their bilateral meeting on the sidelines of the BRICS summit in Kazan on Oct. 24, 2024. U.N. Secretary-General Antonio Guterres highlighted Türkiye 's efforts in negotiations between Russia and Ukraine on Black Sea navigation during talks with Russian President Vladimir Putin on Thursday, according to a U.N. statement. The meeting, held on the final day of the 16th BRICS Summit in