The so-called Syrian Observatory for Human Rights (SOHR) quoted reliable sources as saying on Friday that the new US base is located Day al-Zawr’s al-Jazrat area.
The US-based monitoring group reported that more than 300 trucks, carrying ammunition, weapons, military and logistical supplies, had entered Syria over the past few days and that most of those trucks headed to al-Jazrat.
It further said that the US forces are expanding their base in the al-Omar oil field in the eastern countryside of Dayr Al -Zawr.
Recently, it added, American soldiers and other US-led coalition troops arrived at the base.
Washington runs several military bases in Syria, mainly in northern and eastern regions where the Kurdish-led Syrian Democratic Forces (SDF) are operating.
The US has been plundering Syria’s natural resources and collaborating with Takfiri militants fighting to topple the government of President Bashar al-Assad.