A Yemeni security official says a suspected militant accidentally set off a bomb he was preparing in a metal workshop in the capital, killing himself and injuring one other person. The official said the explosion happened early Sunday in Sanaa's southern Hizzayz district, according to a report of the Associated Press. In the southern port city of Aden, meanwhile, security forces arrested two people Sunday who were driving a car rigged with explosives but a third person managed to flee, another official said.