At least 16 terrorists were killed and several more were injured in the explosion at Jeish al-Islam terrorists' base in al-Dhamir region.
No group has thus far claimed for responsibly of the attack.
Reports said late in June that several terrorists were killed or wounded in clashes between the ISIL and al-Nusra Front rival terrorist groups in the Palestinian Yarmouk refugee camp in the Southern parts of the capital.
"The ISIS terrorists struck the strongholds of al-Nusra Front in al-Mogharebeh neighborhood in Yarmouk and took its control, which also inflicted a heavy death toll on al-Nusra militants," the sources said.
"In the meantime, the al-Nusra pushed the ISIS back from residential areas in Haifa street in the camp, which claimed the lives of several militants from both sides," FNA reported.
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