Negative views about refugees and migrants show disregard for the contributions these people have made to society, celebrated Nigerian author Chimamanda Ngozi Adichie said on Friday.

The woman behind novels such as ‘Half of a Yellow Sun’ and ‘Americanah,’ in addition to several popular TED Talks, was at the UN to deliver an address at a ceremony marking World Humanitarian Day.

Observed annually on 19 August, the day pays tribute to the aid workers who provide assistance to the millions of people across the globe affected by conflict and disasters.

Dianne Penn spoke to Ms Adichie before she took the General Assembly podium.

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