ISIS leader killed by airstrike in Syria, U.S. Central Command says

A U.S. airstrike on Friday killed ISIS leader Usamah al-Muhajir in eastern Syria, U.S. Central Command (CENTCOM) said early Sunday. 

The deadly drone strike was carried out the same day and by a drone that the Defense Department said was being "harassed" by Russia flying over the western part of Syria. 

According to CENTCOM, no civilians were killed in drone strike but they are evaulating reports of a civilian injury.