Turkey is the main source of chemicals and other components that the Islamic State jihadist group is using to make improvised explosive devices, Conflict Armament Research (CAR) said in a newly published report.
"Turkish territory is the main - although not exclusive - source of chemical explosive precursors (ammonium nitrate, potassium nitrate, aluminium paste, and sorbitol), detonating cord, detonators, containers used to house IED main charges, and ancillary IED components employed by Islamic State forces," the report said.
Many of the explosive components were purchased over a long period of time and in large quantities, which the report said indicates that Islamic State forces have a robust supply chain.
The report, titled "Weapons of the Islamic State," is the result of a three-year study conducted between July 2014 and November 2017.
CAR analysed more than 40,000 items recovered from Islamic State, including weapons, ammunition and chemicals used to manufacture improvised explosive devises. The report represents the most comprehensive and verified study to date on the Islamic State terror group's weapons, CAR said.