Afghan officials say an explosion has struck a German military convoy on a main road in northern Afghanistan, killing two Afghan civilians who were nearby. An Associated Press reporter at the scene saw at least one overturned armored vehicle and what appeared to be a civilian car that was mangled in the blast Sunday. Provincial spokesman Muhbobullah Sayedi says the two civilians who were killed were pedestrians who were caught up in the blast. Sayedi said it appeared that bomb came from a suicide attacker.