A truck bombing Monday killed three coalition service members in southern Afghanistan, AP quoted NATO as saying in a statement. A local official said the attack targeted a base operated by troops from Georgia. Omer Zawak, spokesman for the governor of the southern Helmand province, said the truck bomb exploded at the entrance to the Georgian outpost in the Musa Qala district of the province, one of the most volatile regions of Afghanistan. The deaths brought the number of soldiers from the former Soviet republic of Georgia killed in Afghanistan to 22. Georgia has about 1,600 troops in Afghanistan, the largest non-NATO contingent there. Georgian soldiers are under NATO's command.