Airstrikes targeting a site belonging to Iraq's Popular Mobilisation Forces in the western province of Anbar killed at least 10 fighters, including the PMF's Anbar operations commander, and wounded 30 others, security and health sources told Reuters early on Tuesday.
The PMF confirmed in a statement the death of its Anbar commander, Saad al-Baiji, and several of his companions. It accused the United States of carrying out the attack, saying a US airstrike targeted a command headquarters while personnel were on duty.
The strikes targeted the PMF headquarters during a security meeting attended by senior commanders, the sources added.
The PMF, known in Arabic as Hashd al-Shaabi, is an umbrella group of paramilitary factions that was formally integrated into Iraq's state security forces and includes several groups.
Multiple armed groups have launched attacks on US bases in Iraq since the outbreak of the US-Israeli war on Iran in February, raising fears of a wider regional escalation.
The conflict has spilled beyond Iran's borders, with Tehran launching strikes on Israel and Gulf Arab states hosting US military installations, while Israel has carried out attacks in Lebanon following cross-border fire by Hezbollah.
President Donald Trump said on Sunday that Iran could call if it wanted to negotiate an end to the war launched by the US and Israel, as Iran's foreign minister returned to Pakistan for talks despite the absence of US counterparts.
Ukraine commemorated the 40th anniversary of the Chernobyl disaster on Sunday, amid fears that Russia's four-year war could spark a repeat of the world's worst nuclear accident that led to thousands of deaths and devastating environmental consequences.
President Donald Trump and officials in his administration were the likely targets of a suspect who fired on a security agent guarding the White House Correspondents' Association dinner in Washington, US Acting Attorney General Todd Blanche said on Sunday.
Israel issued new evacuation orders for southern Lebanon on Sunday after one of its soldiers was killed, warning residents to leave seven towns beyond the "buffer zone" it occupied before a ceasefire that has failed to fully halt hostilities.
Japan has deployed 1,400 firefighters and 100 Self-Defence Force personnel to battle mountain blazes in the northern part of the country, with the fires, now burning on Sunday for a fifth straight day, continuing to threaten a picturesque coastal town.