JOS, Nigeria (AFP) - Fresh overnight attacks killed at least 15 people in Nigeria, the latest in a wave of recent killings in an area beset by sectarian violence, a local government official said Saturday. "Fifteen people were killed ... in Vwang district of Jos south local government area of Plateau state in a midnight attack," a government spokesman Pam Ayuba said. More villagers were missing in what appeared to be a wave of spiralling attacks suspected to be staged by Fulani herdsmen from adjoining villages. Some of the attacks in recent days have nearly wiped out entire families.