Turkey is being used as one of the primary routes for weapons smuggling to the Islamic State of Iraq and the Levant (ISIL) and al-Nusra, according to a United Nations report.

“Most [arms] supplies have either been seized from the armed forces of Iraq or (to a lesser extent) the Syrian Arab Republic, or have been smuggled to ISIL and [al-Nusra], primarily by routes that run through Turkey,” said a report penned by the U.N. al-Qaida Sanctions Committee.