At least 16 civilians were killed Friday in two separate attacks in Afghanistan, officials said, according to dpa. A suicide bomber detonated his explosives-filled car close to a convoy of NATO troops in Jalalabad city in the eastern province of Nangarhar, police and health officials said. "The attacker targeted a foreign troops' convoy near the airport," said Hazrat Hussain Mashreqiwall, provincial police spokesman. He said he did not know whether foreign troops were casualties. A provincial health official who asked not to be named said that four civilians were killed and 13 wounded. The bomber also died. In the south-eastern province of Ghazni, a minivan struck a roadside bomb which killed 12 civilians. Mohammad Ali Ahmadi, deputy provincial governor, said the incident took place on the outskirts of Khogiyani district.