In Video: ISIS deadly attack against SDF using a booby-trapped flag

A video was posted online shows an attack by ISIS targeting SDF fighter in East Euphrates region of Deir Ez-Zor involving a booby-trapped ISIS flag.
The footage shows SDF soldier approaching the explosive device disguised as an ISIS flag that had been placed on top of a hill near Baghouz in attempt to remove it.
The bomb then goes off while the soldier was attempting to remove it killing him instantly.
Early on last week, the US-backed Syrian Democratic Forces  in Syria have declared military victory over ISIS on Saturday, ending a four-year battle against the group that once held territory spanning a third of Syria and Iraq.
 
https://www.youtube.com/watch?v=t6zELBjqUTA