After the news of his death, state television showed photos of Raisi with the voice of a man reciting the Quran in the background and footage of faithful praying in Raisi's home city.
The Iranian constitution stipulates that the first vice president take over "in the event of the president's death, dismissal, resignation, absence or illness for more than two months".
Hamas said it appreciated Raisi's "support for the Palestinian resistance, and tireless efforts in solidarity" with Palestinians since the start of the Israel-Hamas war in Gaza following the group's October 7 attack.
As a young prosecutor in Tehran, Raisi sat on a panel that oversaw the execution of hundreds of political prisoners in the Iranian capital in 1988, as Iran's eight-year war with Iraq was coming to an end, rights groups say.
