According to media reports, some children found a toy-like bomb near a shop in the provincial capital's Akhtarabad area, which exploded killing one on the spot and severely injuring another.
The injured child was immediately shifted to the Bolan Medical Complex.
In a separate incident in Quetta's Turbat region, miscreants launched an attack on security force personnels. One of the attackers were killed during the skirmish between the two sides.