The Syrian army discovered a mass grave containing about 70 dead bodies in the rebel-held area near Damascus.
The Saudi Gazette report quoted Syria's state news agency Sanaa News as saying that the burial tombs were found in the eastern region of Diving.
It claimed that those killed were 'civilians and security personnel who were executed by terrorist groups'.
It should be noted that the Ganjanabad area east of Damascus had been in control of the rebels for at least 6 years, after which the government regained control after a long and bloody war in 2018.
The killings took place between 2012 and 2014, the state news agency quoted a senior police officer as saying.
It was reported that the mass graves near Duma were in an area controlled by rebel group Jaish-ul-Islam.
In the battle between Syrian forces and rebels, about 177 civilians were killed.
Later, on the basis of an agreement between the two sides, fighters and civilians were transported to northern Syria, according to officials. Most of the bodies were shot in the head.
The information provided by the state news agency could not be immediately confirmed, AFP reports.
It is to be noted that in recent years many mass graves have been found in Syria, especially in areas previously controlled by the ISIS group.
According to the Syrian Observatory for Human Rights, more than 300,000 people have been killed since the beginning of the war in 2011.
Thousands are still missing, and Human Rights Watch last week called for Syrian authorities to investigate.
Earlier, former UN Secretary-General Ban Ki-moon said that the Syrian people are undergoing the 'worst humanitarian crisis of the time' and that 'the souls of Syrian children are in trouble'.
Addressing the conference in Kuwait on the international pact, he said efforts were being made to suppress regional stability under the guise of disappointment.
The conference is organized to seek international donations to help the nation's loss and aid to civilian casualties due to the ongoing conflict in Syria, which calls for more than $ 84 billion in funding over the past year.