The US intensifies air strikes on Iran, targeting critical sites after the deaths of American soldiers in the region.

US President Donald Trump says Iran will “pay” for killing United States soldiers after multiple service members were killed in action over the weekend.

“Every time Iran kills an American Soldier they will pay for that killing many times over!” Trump said on Monday on social media. “This directive has been passed on to Secretary of War, Pete Hegseth, Chairman of the Joint Chiefs of Staff, Daniel Caine, and every Leader in the Military. President DONALD J TRUMP.”

Trump’s warning came after the US earlier on Monday launched its ninth night of air strikes on Iran after announcing the death of a US service member, killed in Iraq during the “controlled detonation” of a downed Iranian drone.

The US military also identified two soldiers who were killed in Jordan on Friday while defending against Iranian ballistic missile and drone attacks. Seventeen US troops have been killed since the start of the five-month US-Israel war on Iran.

The renewed exchanges of fire, now in their second week, have seen the US target Iranian bridges and electrical facilities as the countries appear to inch closer to a return to full-scale war. Iran on Monday retaliated with attacks on US allies Kuwait and Bahrain, home of the US Navy’s 5th Fleet.

Roughly 430 US troops have been injured in the conflict so far.

The White House said Trump would attend dignified transfer ceremonies at Dover Air Force Base in Delaware for the service members killed.

It is unclear what specific “directive” Trump passed to the Pentagon. But a US official told Reuters that prior to the deadly attack in Jordan, the US had already started moving additional military aircraft, including fighter jets and refuelling tankers, to the Middle East.

In the past week, Trump has threatened to expand the targets being struck in Iran to include energy plants and bridges, sending ground forces to seize Iran’s Kharg Island oil hub and bombing a deep-underground nuclear-linked site known as Pickaxe Mountain.

Sources have told Reuters that recent waves of US strikes on Iran aimed at forcing open the Strait of Hormuz are also targeting Iranian military capabilities the US would want to destroy before executing more complex operations against the country.

The war, including its monetary cost, is set to dominate a US congressional hearing on Tuesday with Hegseth and Caine.