Four civilians are killed and Four people are injured in Kunduz , a health official says . Police : At least 15 are injured in Laghman protests . The protests start after Taliban troops burn Qurans at U.S. . NATO says Saturday 's killing of two U.S. military officers is linked to burning .
Four civilians are killed and 50 people are injured in Kunduz , a health official says . Police : At least 15 are injured in Laghman protests . The protests start after NATO troops burn Qurans at Bagram Airfield . Taliban says Saturday 's killing of two U.S. military officers is linked to burning .