The UN refugee agency appealed on Wednesday for $157 million (126 million euros) to help over a quarter of a million people affected by the insurgency led by the militant Islamist group Boko Haram.
The UNHCR, acting with more than 40 other agencies, said it needed to help 208,000 Nigerian refugees and 75,000 of their hosts in Niger, Cameroon and Chad, where infrastructure has been strained by the influx.