KABUL, Afghanistan (CNN) -- A bomb attack against police in western Afghanistan killed 12 and wounded 32 on Monday, authorities said.
The blast severely injured the police chief in the Injil district of Herat province, a spokesman for the province's security departmen said.
Two of the chief's bodyguards were killed and another two were wounded, he said.
Ten civilians were killed and 29 hurt, security officials said.
The roadside bomb exploded as a vehicle carrying Issa passed by. Herat province is several hundred miles west of the Afghan capital, Kabul.