Four soldiers with the NATO-led military alliance and seven Afghans were killed on Wednesday in separate incidents, dpa quoted officials as saying. The alliance said in a statement that two soldiers and an interpreter died in a bomb attack in eastern Afghanistan. It gave no further details. Two other soldiers died in two separate roadside bombs in the south, the military coalition said. It did not give the exact locations of the incidents. In the southern province of Uruzgan, a local police chief and his two bodyguards were killed Wednesday in a roadside bomb. Shah Khan, police chief for Shamalzai district of the southern province of Uruzgan, and his two bodyguards were killed when their vehicle struck a roadside bomb in the district, said Sharifullah Naseri, spokesman for the provincial governor. Meanwhile, Taliban militants kidnapped and killed four civilians in the central province of Wardak, the spokesman for the governor there said.