Mohammad Mirmohammadi, 71, was a member of the Expediency Council that advises Khamenei. He is the latest in a string of Iranian officials to have died after contracting the virus.
The virus started spreading through Iran last week, and by Monday, 66 people were dead and 1,501 cases were confirmed, deputy health minister Alireza Raisi said on state TV. Raisi added that 291 people had recovered.
Iran has the most coronavirus cases in the Middle East, the most deaths outside of China — where the virus