Hundreds of protesters have attempted to storm the US embassy in the Iraqi capital Baghdad.
It follows American airstrikes that killed 25 fighters from an Iran-backed Shiite militia in Iraq.
Mourners are reported to have marched to the capital's heavily-fortified Green Zone after attending funerals for the victims.
Reports from the US suggest diplomats at the embassy were in a safe room, and that demonstrators had not made it into the main embassy buildings.
Journalists with the Associated Press, meanwhile, reported a fire at a reception area and the sound of gunfire after supporters of the militia broke into the compound.
Tear gas has also reportedly been fired by security forces in a bid to disperse the crowd.
Meanwhile, US President Donald Trump accused Iran of 'orchestrating' the attack on the embassy in Baghdad.
Airstrikes
Members of the Kataib Hezbollah militia were targeted by the deadly US strikes in the west of Iraq on Sunday, causing at least 25 deaths and injuring another 55 people.
Iraqi authorities have condemned the US airstrikes.
The office of Prime Minister Adil Abdul-Mahdi said: “The prime minister described the American attack on the Iraqi armed forces as an unacceptable vicious assault that will have dangerous consequences."
Iranian foreign ministry spokesperson Abbas Mousavi also denounced the attack, calling on the US to respect 'the independence, sovereignty and territorial integrity' of Iraq.
Officials from the US State Department have claimed the strikes were a "defensive action designed to protect American forces and American citizens in Iraq, but it is also aimed at deterring Iran".
They claimed that there have been 11 attacks on Iraqi bases hosting coalition forces, adding that alleged one rocket attack near Kirkuk killed one US citizen.
One official told US journalists: "We are not going to let Iran get away with using a proxy force to an attack – to attack American interests, and we will hold Iran accountable for these attacks, which we have done."
