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.

One dead, several injured in Iranian attack on Manama building
Trump says war could be over soon, as Iran rallies behind new leader
Iran names Mojtaba Khamenei as new supreme leader
Indonesia says 7 killed in landfill collapse as rescue operation ends
