Sardar Daud Khan Hospital

Gunmen disguised as doctors stormed Afghanistan's largest military hospital Wednesday, killing at least 38 people in a six-hour attack claimed by the Islamic State group as it makes inroads into the war-battered country.

Gunmen disguised as doctors stormed Afghanistan's largest military hospital Wednesday, killing at least 38 people in a six-hour attack claimed by the Islamic State group as it makes inroads into the war-battered country.