TEHRAN, July 3 -- Iran is preparing for a week of public mourning and funeral ceremonies for Supreme Leader Ayatollah Ali Khamenei, with authorities organising large-scale events across the country aimed at honouring the late leader and demonstrating national unity.

According to Iranian state media, funeral proceedings will begin in Tehran over the weekend before continuing with major public processions in the holy cities of Qom and Mashhad. Additional commemorative ceremonies are also expected to take place in Iraq.

Officials have urged supporters to participate in the events, with arrangements reportedly being made for transportation, accommodation and other logistical support to facilitate large public gatherings. Senior clerics have...