Three people were killed eight others injured in three separate insurgent attacks Friday morning in southern Afghanistan, officials said. One police officer was killed and two others injured when their patrol vehicle hit a roadside bomb in the Chora district of Uruzgan province, provincial spokesman Farid Hayel said. A roadside bomb in the Gereshk district of neighbouring Helmand province hit a bus, killing two passengers and seriously injuring three, a spokesman for the governor said. Earlier today a suicide blast rocked Spin Boldak town in Kandahar province 450 km south of capital Kabul on Friday leaving the attacker dead and wounding three others, provincial police chief Abdul Razeq said. Roadside bombs are mostly blamed on the Taliban insurgents. They were not available for comment on Friday. The deadly attacks came the day French President Francois Hollande was visiting Afghanistan. He was due to meet President Hamid Karzai to discuss the pull-out of French soldiers by the end of this year.