A spate of suicide bombings and other attacks on Afghan security forces Wednesday left 13 people dead and 24 others wounded, officials said. In southern Kandahar province, a suicide bomber blew himself up next to a vehicle carrying intelligence agent in the border town of Spin Boldak, killing three civilians, Kandahar Gov. Assadullah Khalid said. Two children and three intelligence agents were among the 14 hurt, Khalid said. He blamed the Taliban for the attack, the Associated Press reported. In neighboring Helmand province, another suicide bomber targeted a convoy carrying the Gereshk district police Chief, killing two officers and wounding three, district Police chief Khairudin Shuhja said. As the bomber approached the car, guards opened fire, wounding the attacker, who then blew himself up, Shuhja said. In eastern Kunar province, Taliban militants attacked a Police border post, killing five officers and wounding Seven others, said provincial police Chief Abdul Jalal Jalal. Separately, a border police patrol in northwestern Badghis province hit a mine, killing three officers riding in the vehicle, regional police chief Gen. Khalil Andarabi said. More than 900 policemen were among the 8,000 people killed last year in insurgency-related violence, officials said.