It's well-known that ISIS uses weaponized drones, but new images out of Mosul confirm that the group is now using the quadcopters as bombers as well as single-mission vehicles. Kurdish media network Rudaw reported last week that the explosive-dropping drones have killed civilians and damaged equipment. So far, ISIS has not used these drones to deliver chemical weapons, Rudaw said.

Nice shot of the improvised release mechanism ISIL is using to drop grenades from commercial off the shelf UAVs https://t.co/Lj8Ltx0arQ pic.twitter.com/KCuzhUbndb — Alex Mello (@AlexMello02) January 11, 2017

Iraqi forces have anti-drone weapons, including gun-like jammers that can drop some commercial models to the ground, and they've taken down at least a dozen armed drones so far, Rudaw reports. The ISF also uses off-the-shelf drones in its military operations, mainly for scouting and helping to call artillery strikes.