The final day of the African Union leadership summit is under way in the Ethiopian capital, Addis Ababa, and there's plenty to discuss. After months of intense lobbying, Morocco has been readmitted as an AU member. The country left the organisation in 1984 after the AU recognised the independence of Western Sahara. The region is the last African case on the United Nations decolonization committee. A much-delayed referendum still needs to take place. Morocco has welcomed re-joining the AU, while officials from Western Sahara say it's time for the country to discuss the way forward.