An explosion has blasted through a busy commuter bus station on the outskirts of Nigeria’s capital, Abuja, as hundreds of people were traveling to work. Many are feared dead. The blast destroyed more than 30 vehicles and caused secondary explosions as their fuel tanks exploded and burned. The Boko Haram terrorist network has been threatening to attack the capital, in the middle of the country and hundreds of miles from its traditional base in the northeast, where it has killed hundreds of people this year. The Islamic extremists claimed a 2011 suicide bombing by two explosives-laden cars that drove into the lobby of the United Nations office building in Abuja. It killed at least 21 people and wounded 60.