Iran's official news agency say two Revolutionary Guardsmen were killed by US drones last week
Two Iranian Revolutionary Guardsmen were killed by a US drone in the Iraqi city of Tikrit, Iranian state media said on Monday, in a report that was denied by the Pentagon.
The official IRNA news agency said the two had been posted to Iraq as advisers in the war against Islamic State (IS) group militants and that they died in the drone strike a week ago on 23 March
Pictures of the two men, named as Ali Yazdani and Hadi Jafari, were posted on Iranian news websites after their funerals on home soil.
The Fars news agency called Jafari, 29, the third "martyr in defence of the shrines" from the northern Iranian city of Amol. Yazdani was buried in Tehran, it reported.
Iran, the predominant Shiite Muslim power in the region, has said it is supporting ally Iraq and will protect its Shiite holy places against IS.
However, the US Department of Defence said in a statement that it had not conducted airstrikes in the Tikrit area on the date the men were said to have been killed.
"Coalition forces initiated airstrikes near Tikrit on 25 March, two days after the alleged incident occurred and no airstrikes were conducted in or near Tikrit on March 23," said Major Omar Villarreal, a spokesman for US Central Command.
"We have no information to corroborate claims that coalition airstrikes killed two IRGC members," he added, referring to Iran's Islamic Revolutionary Guard Corps.
Iranian-backed Shiite militia groups have for weeks been heavily involved in fighting in Tikrit, seeking to reclaim the city, the home of the executed Iraqi dictator Saddam Hussein, from IS.
Iranian casualties in IS fight
Iranian media have reported the deaths of military personnel, including several generals, killed in Iraq and Syria after Tehran sent them in support of Baghdad's government and of Syrian President Bashar al-Assad in conflicts against IS and Sunni rebels.
While Iran denies its troops are fighting on the ground in Iraq and Syria, the country has said it has military advisers in both countries.
Other Iranians have joined Shiite militia groups as volunteers.
The Revolutionary Guard, however, would appear to be integral to the fighting in Iraq.
Major General Qassem Suleimani, who leads the Quds Force, the Guard's foreign wing, has been pictured on social media near the frontline in Tikrit and other battlegrounds, where he is said to be coordinating Shiite militia groups.
Other Revolutionary Guard deaths have included General Mohammad Ali Allahdadi, killed along with six fighters of Hezbollah in an Israeli airstrike in Syria on 18 January.
Brigadier General Hamid Taghavi, also a member of the Guard, was killed in the Iraqi city of Samarra north of Baghdad in December while advising Iraqi troops.