A week-long ceasefire in Sudan is due to come into effect later today, intended to allow the delivery of humanitarian aid following 6 weeks of conflict. Also, Africa's richest man unveils a new oil refinery in Nigeria. It's received support from the government, but is it all good news for the country? And Buckingham Palace declines a fresh request to return the remains of an Ethiopian prince who was buried at Windsor Castle in the 19th Century. Those stories and more in this podcast with Karnie Sharp.