With drought spreading to almost all regions of Somalia, officials and aid workers have expressed concern for those affected, saying drought was now a major cause of displacement. 'Drought, not insecurity, is now the main reason for new displacement in Somalia,' the UN Office for the Coordination of Humanitarian Affairs (OCHA Somalia) said in a March update. 'More than 52,000 people have been displaced due to drought since 1 December 2010, many of them moving to urban areas in search of assistance.'