The Arabic-language Al-Watan newspaper quoted informed sources as saying that new US military convoys comprising military vehicles and equipment have entered Syria via the Iraqi Kurdistan Region.
The daily noted that the US forces are planning to set up a new military base in al-Sabheh region in Eastern Deir Ezzur overlooking the Euphrates River.
Meantime, local sources said that several massive US military convoys have arrived in Hasaka province from Iraq's Northern regions via areas under the control of the Syrian Democratic Forces (SDF).
They noted that the US military convoys also contained military and logistics equipment sent to the US-led coalition bases in Eastern Euphrates region.
The sources reiterated that fortification of the US military bases in Eastern Syria is still underway even after Trump's decision to pull out forces from Syria.
In a relevant development earlier this month, the SOHR said the US had dispatched hundreds of military trucks comprising weapons and military equipment to Deir Ezzur province in Eastern Syria since President Donald Trump declared his decision to withdraw troops from the country.
The SOHR said that a military convoy comprising a sum of 150 trucks carrying cars and logistic military equipment has been dispatched to the regions under the control of the Syrian Democratic Forces specially on Eastern Euphrates from the Iraqi Kurdistan Region.
The SOHR noted that it was the third US military convoy sent to Syria after Trump's decision on exit of the American troops from Syria, and said that a total number of 500 trucks containing weapons and military equipment have been dispatched to Eastern Syria so far.
Meantime, the SOHR reported that withdrawal of the US heavy military vehicles from Eastern Euphrates towards Iraq has not yet been monitored officially.
The SOHR reported that the Turkish media reports sating that the US has withdrawn its forces from a base at the Syrian-Iraqi-Turkish border were related to the US forces' traffic between Syria and Iraq.
The SOHR had also reported on Sunday that a long convoy of almost 200 US army trucks, carrying weapons, munitions and logistical equipment, left the US bases in Iraq on Saturday and arrived in coalition bases in Raqqa, Manbij and Ein Issa in Northeastern Syria.
In the meantime, the Kurdish militia reported that the trucks arrived in the town of Amouda and left then for the US-run bases in Northeastern Syria, adding that the arms and ammunition cargo is to be delivered to the SDF.
The convoy arrived after the US military decided to withdraw from Syria but leave the SDF armed in the region.