Two bombs attacks in Afghanistan killed three Afghan security forces and two civilians, officials said Monday. Near the border with Pakistan, a roadside bomb ripped through a police vehicle in Khogyani district, killing two police and wounding three civilians, said Ahmad Zia Abdulzai, spokesman for the provincial governor. In southwestern Nimroz province, meanwhile, a suicide bomber attacked a group of Afghan soldiers on Sunday, killing one soldier and two civilians, Gov. Ghulam Dastagir Azad said. Taliban militants have made a comeback over the last three years after their initial defeat following the U.S.-led invasion in 2001. Militants use roadside bombs and suicide attacks in their fight against Afghan and foreign troops.