Two American troops have been killed and another is missing in action after an Iranian attack on Jordan, US Central Command said on Saturday.
They are the first US troops to be killed in the Iran conflict since the ceasefire collapsed this month.
Centcom said in a statement that the service members were taking part in defensive operations against the Iranian ballistic missile and drone attacks, alongside partner forces.
On Friday, Centcom denied a claim from Iran that it attacked a US base in Jordan and hit US planes. Centcom did not immediately respond to a request for clarification.
Four troops were taken to Jordanian hospitals and have since been discharged. Other personnel who were suffered minor injuries have returned to duty, Centcom added.
At least 15 American troops have been killed since the war began when the US and Israel launched strikes on Iran on February 28. Hundreds more have been injured, with thousands of people killed in Iran.
Iran carried out heavy attacks across the region after latest US strikes, as Tehran said it was suspending its commitments under the interim peace deal. Iranian strikes targeted bridges, power facilities and other infrastructure, and it appeared to target Saudi Arabia, as well as other US Gulf allies and Jordan.
It came after a seventh night of US bombing on targets in Iran. The country’s supreme leader, Ayatollah Mojtaba Khamenei, said in a written statement published on Saturday that US breaches of the interim deal “have once again proven to everyone the truth of how worthless and invalid the signature of the US President is".
Mr Khamenei has not yet been seen in public since he was injured in the attacks that killed his father and predecessor, Ayatollah Ali Khamenei, as well as other family members.
Iranian Foreign Ministry spokesman Esmaeil Baghaei accused the US of seeking control over the Strait of Hormuz, through which about a fifth of the world's oil supply usually flows. Both sides have taken aim at shipping traffic in the strait, with Washington saying it is enforcing a naval blockade on Iran and Tehran attacking commercial vessels in the waterway.
