The burial of Qasem Soleimani had been postponed after dozens of people were killed in a stampede as mourners packed streets for the funeral on Tuesday, January 6.
Iran's ISNA news agency confirmed the news but did not say how long any delay would last, reports Reuters.
"Today because of the heavy congestion of the crowd, unfortunately, a number of our fellow citizens who were mourning were injured and a number were killed," emergency medical services chief Pirhossein Kolivand told state television.
The body of Soleimani, a national hero whose death has united many Iranians, had been taken to Iraqi and Iranian cities before arriving in Kerman for burial.
In each place, huge numbers of people filled thoroughfares, chanting "Death to America" and weeping with emotion. Supreme Leader Ali Khamenei shed tears when leading prayers in Tehran.
Soleimani, who commanded the elite Quds Force, was responsible for building up Tehran's network of proxy armies across the Middle East. He was a key figure in orchestrating Iran's long-standing campaign to drive US forces out of Iraq.