Recent precision strikes and coordinated attacks targeting the Islamic State’s media cells have diminished the group’s communications capabilities by nearly half in less than six months, according to the U.S.-led coalition fighting ISIS in Iraq and Syria.

Combined Joint Task Force–Operation Inherent Resolve announced Sunday that strikes conducted by Operation Roundup between Dec. 23 and 29 hit Islamic State fighters, media cells, and a general service building in Syria’s Middle Euphrates River Valley region. As a result, the coalition said the Islamic State’s communications capabilities have been reduced by approximately 45 percent since September.