Nigeria-based group Ansaru has said it killed seven foreign hostages it had seized on February 7 from a construction company in Nigeria, SITE Monitoring Service said. The group issued a statement in Arabic and English on an affiliate of the Sinam al-Islam network accompanied by screen shots of a video purporting to show the dead hostages, SITE said. One screenshot showed a man with gun standing above several prone figures lying on the ground. Ansaru, which has kidnapped other foreigners in the past, had blasted into the compound using explosives and abducted a Briton, an Italian, a Greek and four Lebanese workers, the largest number of foreigners...