Suicide bombers killed at least four people when they attacked two government offices in the southeastern Afghan town of Khost on Thursday, Reuters quoted a police officer as saying. One bomber targeted the department for counter-narcotics, the officer said. The second detonated explosives inside the main intelligence headquarters a few hundred meters away, Guldad said. "The bomber had managed to get inside the intelligence department by wearing the agency's uniform," he said. Two intelligence officers and two police officers were killed and at least nine others wounded in the attack among officials in the intelligence department. Gunfire also erupted inside the building, an official source said. It was not clear whether foreign troops were hit in either of the attacks. Afghan and foreign troops had cordoned off the area and at least one helicopter belonging to foreign troops was hovering overhead, residents said.