UN chief Antonio Guterres demands the Democratic Republic of Congo's "territorial integrity" be respected and a regional war avoided, at an African summit the day after Rwandan-backed fighters seized a second DRC provincial capital. With international pressure mounting on Rwanda to curb the fighting in eastern DR Congo (DRC), the conflict was set to dominate the African Union (AU) summit as it opened in Ethiopia's capital Addis Ababa where the AU is headquartered. Rwanda's President Paul Kagame was seen attending meetings at the gathering, but DR Congo's president Felix Tshisekedi was absent from the summit as the M23 advanced through his country's territory. IMAGES AND SOUNDBITES