A “forgotten crisis” is taking place in north-eastern Nigeria which the UN humanitarian affairs office (OCHA) warns could be the worst on the African continent.

Seven years of insecurity sparked by the terrorist group Boko Haram has affected up to 15 million people in four states, leading to mass displacement.

It has also caused a major food shortage as agricultural production has stalled. As a result, some 400,000 children face starvation.

Dianne Penn asked OCHA Public Information Officer Órla Fagan about the extent of the crisis.

Duration: 4’33”