<p>Two US helicopters on Monday attacked a Syrian army checkpoint in northeastern Syria near the Kurdish-held city of Qamishli, killing one soldier and injuring two others, state media said.</p>.<p>The incident happened shortly after a US patrol was prevented from passing by an army checkpoint in the area, state media said.</p>.<p>Northeastern Syria is mainly under the control of US-backed Syrian Democratic Forces who are spearheaded by Kurdish fighters, but Syrian army forces are deployed in certain locations under agreements with the Kurds.</p>
<p>Two US helicopters on Monday attacked a Syrian army checkpoint in northeastern Syria near the Kurdish-held city of Qamishli, killing one soldier and injuring two others, state media said.</p>.<p>The incident happened shortly after a US patrol was prevented from passing by an army checkpoint in the area, state media said.</p>.<p>Northeastern Syria is mainly under the control of US-backed Syrian Democratic Forces who are spearheaded by Kurdish fighters, but Syrian army forces are deployed in certain locations under agreements with the Kurds.</p>