Taliban insurgents killed six Afghan security personnel Saturday in two separate attacks, Afghan officials said. Four policemen were killed and seven others wounded in double-suicide attacks on their checkpoint outside a security forces station in the southern Helmand province, AP quoted Provincial Police Chief in Helmand Gen. Abdul Rahman Sarjang as saying. Sarjang also said five insurgents equipped with suicide vests were shot and killed by security forces. Mohammad Rasoul Zazi, an army spokesman in Helmand, said one soldier was killed and another was wounded in the attack. Meanwhile, another policeman was killed and four others wounded when their vehicle was hit by a roadside bomb in the southern Uruzgan province, said Rahimullah Khaliqi, the district administration chief. The Taliban claimed responsibility for the attacks in Helmand and Uruzgan.