Syrian foreign ministry spokesman Jihad Maqdisi posted comments on Twitter in which he said that the blast was carried out using 500 kilograms (1,100 pounds) of explosives

A deadly suicide terrorist blast hit Syria's main eastern city of Deir Ezzor on Saturday killing nine people and wounded around 100 others causing also big damages to the surrounding buildings.

A source in Deir Ezzor told SANA reporter that the suicide attacker, driving a Hyundai booby-trapped car stormed the site of Military Constructions, claiming the lives of 9 persons, civilians and guards, as well as the injuring of scores of victims, some of them in critical condition.

The source added that the terrorist blast caused the rift to the 100- meter surrounding buildings  and made a crater with 5-meter diameter and 2,5 depth, while the quantity of explosives was estimated at 1000 KG. 

A team of the international observers inspected the site of the terrorist explosion.

Syrian foreign ministry spokesman Jihad Maqdisi posted comments on Twitter in which he said that the blast was carried out using 500 kilograms (1,100 pounds) of explosives, AFP reported. UN military observers tasked with monitoring a shaky truce in Syria have visited the site of the bombing, Maqdisi added.