DAMATURU, Nigeria (AP) — Two women suicide bombers killed 15 people, including themselves, early Wednesday in northeast Nigeria at a mosque in the compound of a government workers' housing estate and at another location there. Hours later, around 6 a.m. when mosques are filled with the faithful performing early-morning prayers, the suicide bombers struck in Damaturu, Yobe's commercial center. Most attacks take place in the northeast and have spilled over into neighboring countries that regularly suffer suicide bomb explosions and hit-and-run raids.