Nigeria in trauma after blast: Buhari

Nigerian president Muhammadu Buhari has said the nation is in "shock and trauma" and vowed to intensify a crackdown on illegal oil refineries, after a weekend explosion that left at least 100 dead. A fire broke out on the evening of 22 April and quickly spread to two fuel storage areas at a bunkering site on border of Rivers and Imo states in the country's southeast. Oil theft and artisanal refining is common in parts of the oil-rich delta region, CNN reports. Government figures found that Nigeria, Africa's biggest oil producer and exporter, loses more than 400,000 barrels of crude oil to theft each day.