A helicopter "mishap" in northeastern Syria left 22 American service personnel injured over the weekend, the US navy has mentioned.

A spokesman mentioned no enemy fireplace was concerned and the reason for the accident is being investigated.

He added the service members are receiving remedy and 10 have been moved to "higher care facilities" exterior the area.

There are not less than 900 US forces personnel in Syria on common, together with an undisclosed variety of contractors.

US particular operations forces additionally transfer in and in a foreign country however are normally in small groups and usually are not included within the official depend.

US forces have been in Syria since 2015 to advise and help the Kurdish-led Syrian Democratic Forces within the combat in opposition to the militant Islamic State (IS) group.

IS swept by way of Iraq and Syria in 2014 and took management of huge swathes of territory.

US troops have been making an attempt to stop any comeback by IS because the extremist group was defeated in Syria in March 2019.

IS sleeper cells stay a risk and there are additionally about 10,000 IS fighters held in detention amenities in Syria.

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Tens of 1000's of their members of the family live in two refugee camps within the nation's northeast.

Over latest years, US troops have been topic to assaults carried out by IS members and Iran-backed fighters.

In late March, a drone assault on a US base killed a contractor and wounded 5 American troops and one other contractor.

In retaliation, US fighter jets struck a number of areas across the jap province of Deir el Zour, which borders Iraq.

US defence secretary Lloyd Austin mentioned on the time that the strikes have been a response to the drone assault in addition to a sequence of latest assaults in opposition to US-led coalition forces in Syria by teams affiliated with Iran's Revolutionary Guard.

In a associated growth, Syrian Kurdish-led authorities introduced on Saturday that lots of of IS fighters held in prisons across the area might be placed on trial after their dwelling nations refused to repatriate them.