MIHTARLAM, Afghanistan (AFP) - A bomb strapped to the back of a donkey killed one policeman and wounded three civilians in eastern Afghanistan on Friday, officials said. The explosives were set off when the animal walked close to a police post in the volatile district of Alingar in Laghman province early in the morning, provincial spokesman Sarhadi Zwak told AFP. “The bomb on the back of the donkey was remotely detonated, one policeman was martyred and three civilians wounded,” he said. Provincial governor Fazlullah Mojadidi confirmed the incident and casualties. The officials blamed the attack on Taliban militants who have been waging an insurgency against the western-backed Kabul govt.