The Fatah parliament coalition held on Monday Israeli responsible for the attacks on Popular Mobilization Forces (PMF) positions in Iraq.
The accusation stood in contrast to the Foreign Ministry and official stance by the president, prime minister and speaker, who avoided naming Israel in their condemnation of the series of attacks.
The coalition, which represents the PMF at parliament, said it holds the United States fully responsible for the alleged Israeli aggression, "which we consider to be a declaration of war on Iraq and its people."
The bloc’s statement came a day after a drone strike in the western Iraqi town of Qaim killed a commander with the forces — the latest in strikes apparently conducted by Israel against the Iranian-backed militias in Iraq. It added that US troops are no longer needed in Iraq.
The PMF, meanwhile, held a funeral procession in Baghdad for the commander killed Sunday.
The US Defense Department issued a statement Monday denying responsibility for the recent attacks and promising to cooperate with Iraqi investigations.
"We support Iraqi sovereignty and have repeatedly spoken out against any potential actions by external actors inciting violence in Iraq, " Pentagon spokesman Jonathan R. Hoffman said. "The government of Iraq has the right to control their own internal security and protect their democracy."
Anger is mounting in Iraq following a spate of mysterious airstrikes that have targeted military bases and a weapons depot belonging to Iran-backed militias. The drone attacks have not been claimed by any side but US officials have said Israel was behind at least one of the attacks.
The militias have blamed the attacks on Israel but hold its ally the United States ultimately responsible.
Along with the commander, another member of the PMF was also killed in the drone attack on Sunday evening near the Qaim border crossing with Syria. The attack targeted vehicles belonging to the Hezbollah Brigades faction, also known as Brigade 45, which operate under the umbrella of the group.
US forces withdrew from Iraq in 2011, but returned in 2014 at the invitation of the government to help battle the ISIS group after it seized vast areas in the north and west of the country, including Iraq's second-largest city, Mosul. A US-led coalition provided crucial air support as Iraqi forces regrouped and, together with the PMF, drove ISIS out in a costly three-year campaign.
The US maintains about 5,000 troops in Iraq, and some groups say there's no longer a justification for them to be there now that ISIS has been defeated.
"While we reserve the right to respond to these Zionist attacks, we hold the international coalition, particularly the United States, fully responsible for this aggression which we consider a declaration of war on Iraq and its people," the statement by the Fatah coalition said.
Iraqi President Barham Salih hosted a meeting Monday that included the prime minister and parliament speaker as well as PMF leaders to discuss the recent attacks.
A statement issued after the meeting avoided blaming the drone attacks on any specific country, but described it as a "blatant act of aggression" aimed at dragging the PMF away from its ongoing role of eradicating remnants of the ISIS group.
Absent from the meeting were the leaders of two of the most powerful factions strongly allied to Iran, Abu Mahdi al-Muhandis and Qais al-Khazali. An official who attended the meeting said they were in Iran, reported The Associated Press.
