BAGHDAD, July 19 (Xinhua) -- Unknown drone bombarded on Friday a paramilitary Hashd Shaabi camp in Iraq's central province of Salahudin, wounding at least three Iraqis and two Iranians, a local security source said.

The attack took place before dawn when unknown drone bombarded the headquarters of 52nd Brigade of Hashd Shaabi, which is located near the town of Amirli near the town of Tuz-Khurmato, some 90 km east of the provincial capital Tikrit, the source said on condition of anonymity.