A series of attacks by suspected Taleban insurgents has left eleven Afghans dead and an election candidate seriously wounded.

Three policemen guarding a convoy transporting supplies to U.S. bases were killed late Saturday during an ambush in the southern province Zabul.

Another policeman was killed and two were wounded early Sunday in an attack on a police checkpoint on the main highway linking the southern city of Kandahar with Kabul.

Also Sunday, in the southern Helmand province, suspected rebels attacked a district police chief, killing him, three of his bodyguards and his son. Two militants were also killed when the police returned fire.

Hours later, in the same province, a bomb blast seriously wounded a candidate in the September 18 parliamentary elections.

Some information for this report provided by AFP and AP.