Residents in Afghanistan's Helmand province rush an injured man to a waiting ambulance.<br/> <br />He is one of 15 people wounded in a suicide blast targeting foreign forces in the country's south on Wednesday.<br/> <br />At least four other Afghans were killed.<br/> <br />This man says he hurried out of his home after hearing the explosion and saw several people wounded, including a man whose legs were amputated.<br/> <br />Although Afghan police say foreigners were hurt in the blast, a spokesperson from the NATO-led coalition forces could not immediately confirm the report.<br/> <br />A police spokesman said a suicide bomber had attacked as an American convoy passed by, but four civilians were caught in the explosion, including a woman and child.<br/> <br />Helmand province has been the scene of some of the fiercest battles pitched between insurgents and NATO forces since the Taliban overthrow in 2001.
