The death toll in a stampede during a funeral for an Iranian commander killed in a U.S. drone strike rose to 50 on Tuesday, Iran's ISNA news agency reported.

The news agency quoted the coroner's office for Kerman province, Abbas Amian.

The body of slain military commander Qasem Soleimani was transported to his hometown of Kerman, where he will be laid to rest later on Tuesday.

Earlier, the semi-official Fars news agency said 40 were killed in the stampede, with the number of the injured rising to 213.

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Khamenei leads mourning for Soleimani as crowds flood Tehran

Mourning events have been held in cities of Tehran, Qom, Mashhad and Ahvaz in the last two days as supporters filled streets to pay tribute.

Soleimani, who spearheaded Iran's Middle East operations as commander of the Revolutionary Guards' Quds Force, was killed in a U.S. drone strike near Baghdad Airport on January 3. His killing has ratcheted up tensions between the U.S. and Iran, which has vowed "severe revenge."

In Tehran on Monday, President Hassan Rouhani warned Trump to "never threaten" Iran after the U.S. leader issued a U.S. strike list of 52 targets in the Islamic republic. 

People converged from afar on Azadi Square where two flag-draped coffins were on display, with the second one reportedly containing the remains of Soleimani's closest aide, Brigadier General Hossein Pourjafari. 

"We're here today to pay respects to the great commander of the holy defense," said one of the mourners who came from the southern city of Shiraz to attend the funeral in Kerman. 

"Haj Qasem was not only loved in Kerman, or Iran, but also the whole world," Hemmat Dehghan said.

"The security of the whole world, Muslims, Shiites, Iraq, Syria, Afghanistan and especially Iran, all owe it to him," said the 56-year-old war veteran.

'Boils the blood' 

Another mourner said Soleimani's assassination "boils the blood of the Iranian people."

"He was seen as a great man who was ready to serve his people both then in the war and now. He must certainly be avenged," said Sara Khaksar, an 18-year-old student. 

Friday's assassination of the 62-year-old Soleimani heightened international concern about a new war in the volatile Middle East and rattled financial markets. 

Iraq's parliament has demanded the government expel the 5,200 American troops stationed in the country in response to the drone attack which also killed top Iraqi military figure Abu Mahdi al-Muhandis. 

Baghdad requested in a letter to the UN that the Security Council condemn the U.S. drone strike, so that "the law of the jungle" was not allowed to prevail. 

The operation represented "a dangerous escalation that could lead to a devastating war in Iraq, the region and the world," wrote the Iraqi ambassador to the UN, Mohammed Hussein Bahr-Aluloom.

(With input from agencies)