Iowa National Guard soldiers identified as victims in deadly Syria ISIS attack

The U.S. troops who were killed and injured successful Saturday’s ambush onslaught successful Syria were members of the Iowa National Guard, a elder U.S. authoritative told Fox News.

An ISIS gunman opened occurrence with an automatic limb successful the cardinal Syrian municipality of Palmyra, sidesplitting 2 Iowa National Guard soldiers and an American civilian translator, the authoritative said. 

Three further U.S. soldiers were wounded successful the attack.

TRUMP VOWS 'VERY SERIOUS RETALIATION' AGAINST ISIS AFTER DEADLY SYRIA AMBUSH KILLS US SOLDIERS

U.S. forces patrol successful Syria's northeastern metropolis of Qamishli successful the Hasakeh province, Jan. 9.  (Delil Souleiman/AFP via Getty Images)

Preliminary accusation suggests the attacker was erstwhile affiliated with the Syrian authorities forces and had been a low-level subordinate of the Syrian Security Forces, earlier aboriginal becoming connected to ISIS, the authoritative said. 

"He was not a portion of the authoritative delegation that was being escorted by the US and Syrian troops," the authoritative said. "… This would not beryllium considered a ‘green connected blue’ incidental due to the fact that the Syrian gunman was not portion of the US/Syrian partnered delegation."

2 US ARMY SOLDIERS, INTERPRETER KILLED IN SYRIA AMBUSH ATTACK, TRUMP WARNS OF 'VERY SERIOUS RETALIATION'

President Donald Trump attends the 126th Army-Navy Game betwixt the Army Black Knights and the Navy Midshipmen, Saturday, successful Baltimore, Md.  (Tasos Katopodis/Getty Images)

Earlier Saturday, U.S. Central Command confirmed the deaths and injuries were a "result of an ambush by a lone ISIS gunman successful Syria."

President Donald Trump warned that determination volition beryllium "very superior retaliation" pursuing the ambush.

"We mourn the nonaccomplishment of 3 Great American Patriots successful Syria, 2 soldiers, and 1 Civilian Interpreter. Likewise, we commune for the 3 injured soldiers who, it has conscionable been confirmed, are doing well," Trump wrote connected Truth Social. 

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U.S. Army soldiers successful northeastern Syria.  (John Moore/Getty Images)

Trump added, "This was an ISIS onslaught against the U.S. and Syria, successful a precise unsafe portion of Syria, that is not afloat controlled by them."

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Last month, 2 West Virginia National Guard members were ambushed and changeable adjacent the White House successful Washington, D.C., successful a targeted onslaught that near 1 worker dead.

Fox News' Greg Norman contributed to this report.