Iranian leaders began paying their respects on Friday before the coffin of the country's late supreme leader Ali Khamenei, killed in the US-Israeli strikes that triggered the Middle East war, as Tehran prepared for a vast funeral.
Khamenei's body arrived at Tehran's Grand Mosalla on Friday ahead of ceremonies which are expected to draw millions.
A coterie of foreign dignitaries is also due to attend Saturday's official ceremony, with Tehran's chief negotiator calling for a massive turnout to avenge his death.