A seven-day ceasefire in Sudan has been signed as fighting between two warring factions entered its sixth week. The ceasefire is expected to take effect this evening (Monday). Previous truce attempts between Sudan's regular army and the paramilitary Rapid Support Forces (RSF) have tended to collapse within minutes of beginning. Fighting between the two sides has plunged the country into chaos, with more than a million people thought to have been displaced. For more on this, Elvis Presslin spoke to Africa Affairs Analyst and Channel Africa's head of the Kiswahili service, Nixon Katembo