Iran’s chief negotiator Mohammad Bagher Ghalibaf has called for a massive public turnout at the funeral of the country’s Supreme Leader Ayatollah Ali Khamenei, who was killed in a joint U.S.-Israeli attack. In a statement released on Thursday, Ghalibaf reaffirmed Iran’s pledge to avenge Khamenei’s death and urged citizens to attend the ceremonies starting Saturday to mark what he described as a historic moment for the Islamic Republic.

Ghalibaf said that the nation’s call for revenge should resonate across the world. According to Iranian leadership, the funeral events beginning Saturday are intended to demonstrate national unity and resistance through widespread participation.

The government has indicated that the ceremonies will serve as both a tribute to Khamenei and a show of solidarity amid heightened tensions following his death.