Suspected Islamist Boko Haram militants have ambushed a UN humanitarian aid convoy in north-eastern Nigeria which had a military escort, officials say.
The military said three civilians, including UN staff, and two soldiers were wounded in the attack.
It has prompted the UN to temporarily suspend aid deliveries in Borno state, where more than two million people have been displaced by the insurgency.
The UN says thousands of children are severely malnourished in the region.
Earlier this month the UN’s children agency warned that tens of thousands of children would die if treatment did not reach them soon.
Islamist militant group Boko Haram, which has lost most of the territory it controlled 18 months ago, is fighting to overthrow the government. Its seven-year insurgency has left 20,000 people dead mainly in the country’s north-east. Almost 250,000 children are affected by severe malnutrition in the region, with one in five at risk of dying if they do not receive help, according to the UN.
Boko Haram At A Glance:
Founded in 2002, initially focused on opposing Western-style education – Boko Haram means “Western education is forbidden” in the Hausa language
Launched military operations in 2009
Thousands killed, mostly in north-eastern Nigeria, hundreds abducted, including at least 200 schoolgirls
Joined so-called Islamic State, now calls itself IS’s “West African province”
Seized large area in north-east, where it declared caliphate
Regional force has retaken most territory last year