United Nations Secretary-General António Guterres has expressed deep grief over the assassination of Iran's Supreme Leader, Ayatollah Ali Khamenei.He conveyed his condolences during a telephone conversation with Iranian Foreign Minister Abbas Araghchi yesterday, Thursday afternoon local time.The Iranian Ministry of Foreign Affairs shared this information in a statement, noting that during the call, Guterres extended his sympathies to the government and people of Iran.Additionally, they exchanged...