TEHRAN (Press Shia Agency) – Iraq announced Friday it had carried out air strikes against the Daesh (ISIL or ISIS) terrorist group in Syria, the third cross border aerial operation in a month in its war-torn neighbor.

"Iraqi F-16 planes carried out (Thursday) morning raids against the headquarters of Daesh terrorist gang leaders and an explosives depot occupied by terrorists in Syria's Hajin region," a statement by Iraq's operations command said, AFP reported.

A video released with the text shows a strike on a huge building surrounded by palm trees and a wall.

The images show the wall and the building collapsing simultaneously.

Several strikes have been carried out by Iraq since Thursday against the center of Hajin, the last major area held by Daesh in Syria, said the so-called Britain-based Syrian Observatory for Human Rights war monitor.

At least 65 senior Daesh leaders live in Hajin, the Observatory's director Rami Abdel-Rahman said.

Hajin is in Deir ez-Zor province in eastern Syria, about 50 kilometers from Iraq's border.

It has been surrounded since the end of 2017 by the Syrian Democratic Forces, an alliance of Kurdish and Arab fighters backed by the United States and France, Abdel-Rahman said.

Several hundred prisoners are still held by the militants in Hajin, he added.

Since April, Iraq's air force has carried out several air strikes on Daesh-held Syrian territory close to the border between the two countries.

Daesh seized a third of Iraq in 2014, before the government declared victory in December, but the military has continued regular operations along the porous Syrian border.