The twin car bombings that ripped through a bus station and marketplace in the Nigerian city of Jos "bear the hallmarks of Boko Haram", NBC News' Bill Neely has said.
With at least 118 dead, this attack was one of Nigeria's deadliest ever bombings.
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Government ministers from the UK, France and China attended the event.
Tonight investigates the increasingly sophisticated methods criminals are using to target the elderly and defraud them of their savings.