Twenty-two US service members were injured in a helicopter "mishap" in northeast Syria, the US Central Command said late on Monday.
Ten service members had been evacuated to higher care facilities outside the Central Command area of responsibility, it said in a statement.
The cause of the incident on Sunday was under investigation, although no enemy fire was reported, said the US Central Command, which oversees US forces in the Middle East.
More to follow.

US and Iran closing in on memorandum to end war, sources say
Trump defends higher ballroom costs, targets less than $400 million
Trump says operation to reopen Strait of Hormuz will be 'paused'
Ukraine says Russia violated ceasefire initiated by Kyiv
Hantavirus-hit cruise ship to head to Spain after being granted permission
