A mortar attack has hit Somalia’s capital Mogadishu, close to where regional leaders were about to begin talks on taking part in the government’s ongoing offensive against the militant group al-Shabab. Plus, Pope Francis calls for peace in the east of the Democratic Republic of Congo, as he addresses an open mass in Kinshasa attended by hundreds of thousands of people. And as video app TikTok continues to take the world by storm, we speak to the company's head of content programming for Sub-Saharan Africa.