An Interior Ministry spokesman said the two were part of a group of six al Qaeda militants who attacked the Wadia border post on Friday from Yemen. Three of them were killed on Friday and a fourth was captured after being injured.

Saudi Arabia, the world’s biggest oil exporter, has long viewed its 1,800 km (1,100 mile) border with impoverished, conflict-ridden Yemen as a major security problem and has been building a fence to deter militants and criminals.

The Interior Ministry spokesman, Mansour al-Turki, said security forces surrounded the two men on the second floor of the local intelligence service building in al-Sharurah area after they had forced their way into the building on Friday. The militants, who Turki said had been identified as people wanted by the authorities, declined a chance to surrender. […]