The innocent children were playing in an open area in Garmsir district Saturday morning and found a toy-like device, but the device exploded, killing three children on the spot and injuring two others, the official said, adding that the injured children have been shifted to a nearby hospital.
A similar incident claimed the lives of two children and injured seven others in the northern Baghlan province in mid-January.
Afghanistan reportedly is one of the most mine-contaminated countries in the world, as explosive devices and unexploded mines left over from the past more than four decades of wars claim the lives of over a dozen people mostly children every month in the war-torn country.