US military refueling plane goes down in Iraq; rescue is underway

It was not immediately clear if there were casualties. A U.S. official, who spoke to the Associated Press on condition of anonymity to discuss the developing situation, said the KC-135 aircraft that crashed had at least five crew members aboard.

The crash was not caused by hostile or friendly fire, the military said, describing the plane as "a loss."

U.S. Central Command, which oversees the Middle East, said two aircraft were involved; one landed safely and the other went down in western Iraq.

A second U.S. official, who similarly spoke on condition of anonymity, said the other plane involved also was a KC-135 tanker.

"More information will be made available as the situation develops," Central Command said. "We ask for continued patience to gather additional details and provide clarity for the families of service members."

The tanker is the fourth publicly acknowledged aircraft to crash as part of the U.S. military's operations against Iran.

Last week, three American fighter jets were mistakenly downed by friendly Kuwaiti fire.

All six crew members safely ejected from the F-15E Strike Eagles and were in stable condition after being recovered, the U.S. said.

Seven American troops have been killed in combat during the Iran war so far, while about 140 U.S. service members have been injured, including eight severely, the Pentagon said earlier this week.

Both President Donald Trump and Defense Secretary Pete Hegseth warned that the Iran war would likely claim more American lives before it ends.

Six of the fallen service members were killed when an Iranian drone struck an operations center at a civilian port in Kuwait. They were in the Army Reserve and worked in logistics, keeping troops supplied with food and equipment.

They died one day after the U.S. and Israel launched the military campaign against Iran on Feb. 28. The Islamic Republic has retaliated with missiles and drones against Israel and several Gulf Arab states that host U.S. armed forces.

The seventh American service member died after being wounded during a March 1 attack on the Prince Sultan Air Base, Saudi Arabia.

Trump joined grieving families for a dignified transfer at Dover Air Force Base when the remains of the first six soldiers were returned to the United States. Vice President JD Vance, Hegseth and others saluted the seventh flag-draped transfer case as it arrived this week at Dover.

The KC-135 tanker involved in the latest crash is based on the same design as the Boeing 707 airliner and entered military service more than 60 years ago. Like other long-serving aircraft, the planes underwent various retrofits and upgrades over the years.

The KC-135 tankers typically have a crew of three. It's not immediately clear what role the extra crew members were serving aboard the flight.

According to a report from the Congressional Research Service, the Air Force last year had a total of 376 KC-135s, including 151 on active duty, 163 in the Air National Guard and 62 in the Air Force Reserve.