The youth has been identified as 23-year-old Marwan Ismail, a resident of Trikaripur. The message reportedly had just one line which said Marwan was "martyred", in a drone attack along with a few others.
Marwan's family has said he left home to join the ISIS in May 2016 as part of a 21-member group. He was suspected to be in Nangarhar, a province in Afghanistan partially controlled by the terrorist organisation.