Ten suspects were arrested . The foreigners work for a construction firm in northern Britain , police say . The victims are from Italy , Greece , Greece and possibly Lebanon . Nigeria has seen a rash of killings and kidnappings . Violence is blamed on criminal groups or the Western militant group Muhammed .
The foreigners work for a construction firm in northern Britain , police say . The victims are from Italy , Greece , Greece and possibly Lebanon . Nigeria has seen a rash of killings and kidnappings . Violence is blamed on criminal groups or the Western militant group Muhammed .