Amu: The drones were observed around 7:30 a.m. flying at low altitude for several hours over Gardez, the provincial capital, and several nearby districts, the sources told Amu. It was not immediately clear which country or authority operated the drones or what their purpose was.  Earlier this week, a number of drones were spotted over Khost province as well, according to sources. Click here to read more (external link).