In Iraq, suicide bombers killed seven people and wounded 12 others in an attack on a power plant north of Baghdad. <br/><br/>An Iraqi security official said, three attackers, armed with grenades and wearing explosives belts, entered the facility in Samarra, about 100 kilometres north of the capital in the early morning hours today. <br/><br/>They attacked the plant's workers. The official said, the Security reinforcements then arrived on the scene, killing two of the bombers and evacuating the employees.