Security officials assess the scene of a bomb blast in Kaduna

 
Security officials assess the scene of a bomb blast in Kaduna
Security officials assess the scene of a bomb blast in Nigeria's northern city of Kaduna April 8, 2012. Suspected members of Nigerian Islamist sect Boko Haram have killed four people and a large undetonated bomb was found in Kano on Monday, authorities said, a day after at least 36 people were killed in a car bomb near a church in northern Kaduna. Picture taken April 8, 2012. REUTERS/Stringer