Members of Iraq's Hashed al-Shaabi forces stand guard during a pro-Iran rally in Tahrir Square in Baghdad. AFP
"This treacherous attack resulted in the martyrdom of one PMF fighter and the wounding of four others, as well as a member of the ministry of defence," said a short statement from the group, which is also known as the Popular Mobilisation Forces, adding it was a "Zionist-American attack".
The PMF is a coalition of armed groups -- formed in 2014 to fight jihadists -- that is now part of the regular army.
PMF positions have been repeatedly targeted since the outbreak of the war on Iran, with the group consistently accusing the attacks on the United States and Israel.
According to the PMF statement, the latest attack targeted a position in western Anbar province of the 45th Brigade, which belongs to Kataeb Hezbollah group.
Kataeb Hezbollah is part of the umbrella movement known as the Islamic Resistance in Iraq, which has been claiming daily attacks since the start of the war on US military assests in Iraq.
The Pentagon has said helicopters have carried out strikes against armed groups in Iraq during the war.
On Saturday, two drones caused a fire after they hit the southern Burjesia oil complex, which houses foreign companies, a security source told AFP.
Many foreign oil facilities in Iraq have paused operations since the war began.
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