RNA - The discovery was made as the army continued its cleansing operations in Southern Damascus.
The militants' workshop was discovered in positions formerly used by the terrorists to make explosive and poisonous materials.
The Syrian army officers also revealed that a large volume of powerful explosives made by a Saudi company was found in the workshop.
Damascus
The Syrian Army troops continued mop-up operation in the recently-liberated Yalda, Bebeila and Beit Sahm regions in Southern Damascus, discovering an explosive workshop and Saudi chemical materials on Sunday.
The army men continued cleansing operation in Yalda, Bebeila and Beit Sahm and found a workshop in terrorists' former positions used for making explosives and poisonous materials.
A large volume of powerful explosives made by a Saudi company was found in the workshop, according to the army officers.
In the meantime, a-kilometer-long network of tunnels was discovered by the army in the region that was used by the terrorists to transfer arms and ammunition to different battlefields.
Also, a large number of landmines, bombs and chemical masks were found in the farms near Yalda, Bebeila and Beit Sahm.
A field commander confirmed in May that the Syrian army's engineering units found the weapons and ammunition during the clean-up operations in Eastern Qalamoun which recently were evacuated by Jeish al-Islam and al-Nusra.
He added that the Syrian army forces discovered several tanks and a large number of missiles, mortars, anti-tank missiles, different types of ammunition, weapons and bombs which had been hidden by the terrorists in their hideouts.
The sources said that the army units also found a large number of drugs as well as Nitrogen chemicals used by militants to make different types of bombs and mortars that all carried with Turkish and Saudi labels.
The commander said the "footprint of Saudi Arabia and Turkey can readily be traced in all the data-x-items found in the region".
Deir Ezzur
The Syrian Army troops repelled ISIL's heavy offensive in Southeastern Deir Ezzur, inflicting major losses on the terrorists on Sunday.
The army men engaged in fierce clashes with the ISIL after the terrorists attacked the towns of al-Hasarat and al-Sha'afa on the Western bank of the Euphrates River and in Southeastern Deir Ezzur.
Also, the army's artillery and missile units opened heavy fire at the positions and movements of the terrorists in the region.
The army further inflicted major casualties on the terrorists and forced their remaining pockets to retreat.
Hama
According to Fars News Agancy, the Syrian Army's artillery and missile units launched a heavy shelling attack on the strongholds of Tahrir al-Sham Hay'at (the Levant Liberation Board or the Al-Nusra Front) in Northern Hama, inflicting major losses on the terrorists on Sunday.
The artillery and missile units pounded the positions and movements of Tahrir al-Sham in al-Zakat, al-Latamina, Morek, Kafr Zita, Latmin and al-Araba'een in Northern Hama, destroying several positons and military vehicles and killing or wounding a number of militants.
In the meantime, other units of the army continued mop-up operations Southwest of the town of al-Salamiyah and found a large volume of terrorists' arms and ammunition, including mortar shells, rockets and rocket launchers in a tunnel in the farms near the village of al-Dalak.
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