By Parisa Hafezi and Angus McDowallDUBAI, July 9 (Reuters) - The funeral procession of Iran's slain Supreme Leader Ayatollah Ali Khamenei approached the country's holiest shrine for his burial on Thursday with a massive banner reading 'We Will Kill Trump' pulled alongside in the enormous crowd.As a week of funeral events reaches its culmination, Khamenei's son and successor Mojtaba Khamenei is still hidden from public view after being disfigured in the strike that killed his father, a sign of the unease still gripping Iran.

The turnout came as Iran negotiates with the United States over a permanent end to the war that killed the 86-year-old cleric.

The Islamic republic's supreme leader was killed in the first days of conflict between the United States, Israel and Iran.

Placards were held up saying ‘Kill Trump’