On February 20, the ISIS-linked news agency Amaq reported that ISIS members had shelled a US military base in the Afghan city of Jalalabad with Grad-type unguided rockets.
#AFGHANISTAN#IslamicState Claims Missile Attack On #US Military Base In #Jalalabad. #TerrorMonitor pic.twitter.com/bdrT3vu3gX
— Terrormonitor.org (@Terror_Monitor) 20 February 2018
The ISIS statement is likely a propaganda move aimed at promoting itself as a power fighting the Americans in Afghanistan to gain support from the local population. The group is currently involved in a fierce confrontation with the Taliban.