In his first interview since taking office on 1 Jan, the new head of the UN refugee agency, Dr Barham Salih, speaks to the BBC about US concerns over the organisation’s effectiveness and his push for reform. Speaking during his first working visit to Kenya’s Kakuma refugee camp, he stresses the continuing scale of global civilian displacement and the need for more efficient humanitarian responses. We also look at how social media platforms are helping young people across Africa use running to build community, connection and wellbeing in cities including Abuja and Nairobi.

Presenter: Charles Gitonga