KADUNA, Nigeria (AP) — A breakaway Islamic extremist group said Saturday it had killed seven foreigners who its members kidnapped from northern Nigeria, according to an online message purportedly from the group.

The message, identified as coming from Ansaru, could not be immediately verified by The Associated Press, though it included photographs the group claimed showed the dead, who were kidnapped from a construction company compound in February. Those kidnapped included four Lebanese citizens and one each from Britain, Greece and Italy — all employees of Setraco, a Lebanese construction company with an operation in Bauchi state, officials said.