Children make up about half of all armed gang members in Haiti, the head of the United Nations Children's Fund (UNICEF) said on Monday, calling for their protection to be stepped up. Meanwhile, the UN World Food Programme (WFP) says it is ramping up its operations in Haiti in the face of a hunger crisis caused mainly by violence and displacement. Some 5.5 million Haitians are in need of humanitarian assistance in 2024, a number that is expected to rise.