At least six people were killed while eight others injured in a suspected US drone strike in South Waziristans Ladha area. According to official sources, a suspected US drone fired two missiles in Ladhas Saam area early Thursday. Meanwhile, locals said US predator drones were still hovering over the South and North Waziristan tribal regions. Sources said the number of casualties may increase. Despite protests from the Pakistani government, there has been no letup in drone strikes on Pakistani soil.