Syria’s official news agency SANA, citing media and local sources, reported that American forces had recently transported the terrorists to an unknown location.
The Daesh members were being kept at al-Hol refugee camp, which lies close to the Syria-Iraq border and is run by the Kurdish-dominated Syrian Democratic Forces (SDF).
The report said that less than a day before 230 foreign terrorists from Daesh had been transferred from al-Malikiyah prison to a detention center in al-Shaddadi town in southern Hasakah, Presstv Reported.
Since October 9, SANA said, US forces had transported hundreds of Daesh extremists and their relatives from Syrian territories to Iraq in six batches.
The date is when Turkey and its allied militants launched a ground offensive against Kurdish forces in northeastern Syria.
American forces have also turned their illegal base in Shaddadi into a place of accommodation for Daesh terrorists and their families, who are being brought from al-Hol camp and prisons across Syria to the base in order to be transported on board military helicopters to Iraq.
US forces have until recently been airlifting Daesh terrorists from one place in Syria to another, under the cover of darkness, in order to save them in the face of advancement and territorial gains by Syrian government forces, and prevent revelation of their alliance with the Takfiri extremists.
Syrians celebrate army deployment in border towns amid Turkish incursion
In Syria’s eastern province of Dayr al-Zawr, dozens of people gathered to express support for the deployment of government forces in the Kurdish-populated border towns in the wake of Turkey's offensive.
On Sunday, the residents of the provincial capital city of Dayr al-Zawr gathered at al-Intisar roundabout to denounce the Turkish aggression, and demand the full withdrawal of US troops from Syrian territories, SANA reported.
The participants waved the national Syrian flag and lifted pictures of President Bashar al-Assad.
They described the Turkish aggression on Syrian soil a criminal act, vowing that the sons of Syria will all confront the offensive, dubbed Peace Spring Operation.
They also called for the complete withdrawal of illegal foreign forces, whether Turkish or American, from Syrian soil.
“All Syrians reject the Turkish operation because it constitutes an act of aggression against a sovereign state.
This is contrary to international law and regulations.
We are here today to tell (Turkey’s President Recep Tayyip) Erdogan, his American masters and their proxies that Syria is strong with its army, its people, its leader.
History has shown that this land is insurmountable to aggressors,” said Mudhi al-Muhaimid, a member of the executive office of Dayr al-Zawr provincial council.
Director of Education in Dayr al-Zawr Khalil Haj Ubaid said, “Syria's civilization, history and originality will remain impervious to the greediness of enemies.
The Syrian government and the Syrian Arab Army are the only forces that can protect Syrian people.
The entire world is now witnessing how President Assad has triumphed over all forces of injustice and tyranny.”
Turkish military forces and Ankara-backed militants launched the long-threatened cross-border invasion of northeast Syria in a declared attempt to push Kurdish fighters from the People's Protection Units (YPG) away from border areas.
Ankara views the US-backed YPG as a terrorist organization tied to the homegrown Kurdistan Workers' Party (PKK), which has been seeking an autonomous Kurdish region in Turkey since 1984.
The YPG constitutes the backbone of the SDF.
The Kurdish-led administration in northeastern Syria says the Turkish offensive has killed 218 civilians, including 18 children, since its outset.
The fighting has also wounded more than 650 people.
Turkish authorities say 20 people have been killed in Turkey by bombardment from Syria, including eight people who were killed in a mortar attack on the town of Nusaybin by YPG militants on October 11.
SANA tours US base in al-Saidiyah area southwest of Manbij
In another development, SANA journalists entered the abandoned US base in the al-Saidiyah area southwest of Manbij, only a few days after American forces evacuated the site.
The heavily fortified base contains a big open field, service stations for the maintenance of vehicles, training fields, communication towers and a number of military posts.
US forces burned documents, communication devices, laptops, computers, monitors and medical supplies just before their withdrawal from the base.