A powerful bomb blast designed to target a police vehicle rocked Spin Boldak, a border town in southern Afghanistan on Sunday, killing two people and injuring 11 others, a local official said. "The explosive device planted on a motorbike was detonated by remote control at around 9:00 a.m. local time when a police van was passing by a bus stop, as a result two persons were killed and 11 others sustained injuries," Hajji Abdul Ghani, the governor of Spin Boldak district told Xinhua, adding that all victims were civilians. The official blamed the attack on the enemies of peace, a reference to Taliban militants though no group has claimed responsibilities. A border town connecting Taliban birthplace in south Afghan province of Kandahar to Pakistan's Baluchistan province, Spin Boldak has experienced repeated deadly bomb blasts.