A reported rocket strike targeted two American military facilities in Syria, according to local sources cited by RIA News.
One site was an American base near Az-Zakhriyah airport, described as located in Hasakah in the northeast.
The report notes that many missiles appeared to land inside US controlled territory, though the precise tally of those reaching the base was not disclosed.
Another claim referenced an attack on a separate American base near the Omar oil field on December 16, with a second base situated in Deir el-Zor province.
Witnesses described four rockets striking the field and explosions echoing across the area.
Additional information about the incident, including possible damage and any injuries, has not been released at this time.
Earlier on December 11, the Omar oil field base in Syria reportedly came under rocket fire and, after four projectiles landed in the region, American helicopters were deployed to patrol the surroundings.
Observers note that the wider international discussion continues at venues like the United Nations about the role and withdrawal of US forces from Syria and Turkey, with recent discussions focusing on security arrangements and regional stability. [Citation: RIA Novosti]