UPDATE 1-US-backed Syrian fighters claim to have captured IS leader's assistant
U.S.-backed fighters in Syria have captured a senior Islamic State leader who served as an assistant to the group's self-declared "caliph" Abu Bakr al-Baghdadi, they said on Friday.
They captured Awaid in a special operation in a village in eastern Syria, the statement said, adding that he had been a senior security official for Islamic State in the country.
More than a year after Islamic State's physical "caliphate" collapsed in both Syria and Iraq under military attack, Baghdadi's whereabouts remain a mystery.
However, despite its loss of territory, the group has been able to launch guerrilla attacks in areas controlled by both the Syrian and Iraqi governments.
(With inputs from agencies.)