"We have confirmed information that ISIL forces its elements to use specific types of drugs in order to increase addiction to get them under control and push them into the abyss of death," he said.

Al-Zaidi added that most of the ISIL terrorists, who were killed in Diyala battles and Salahuddin, "were found in possession of pills and narcotic drugs".

He further said that most of the ISIL suicide bombers received three doses of narcotic before carrying out the suicide attacks.

"The organization depends on the drug dramatically, and we have found big quantities of drugs in their dens in the liberated cities, especially in Diyala and Salahuddin during the past months," he added.

The ISIL Takfiri terrorists currently control shrinking swathes of Syria and Iraq. They have threatened all communities, including Shiites, Sunnis, Kurds, Christians, Ezadi Kurds and others, as they continue their atrocities in Iraq.

Senior Iraqi officials have blamed Saudi Arabia, Qatar, and some Persian Gulf Arab states for the growing terrorism in their country.

The ISIL has links with Saudi intelligence and is believed to be indirectly supported by the Israeli regime.