Lagos - The United Nations says it is suspending aid to dangerous areas of Nigeria's north-eastern Borno state after Boko Haram ambushed a humanitarian convoy.
The military and the UN Children's Fund say two soldiers and three civilians were wounded in Thursday's attack, including a Unicef employee and a contractor for the International Organisation for Migration.
The convoy was travelling from the newly liberated city of Bama, where Doctors Without Borders has warned that children die of starvation daily with 15% suffering severe acute malnutrition and likely to die without food and medical aid.
Humanitarian workers say there is a "catastrophic humanitarian crisis" in the areas where aid is being suspended.
Unicef spokesperson Doune Porter said on Friday that aid will continue to Maiduguri, a city of 1 million people hosting another million refugees.