DR Congo troops pull back as M23 rebels take airport near Bukavu - M23 Rebels in Congo Say They Have Entered Bukavu - Children use guns discarded by DR Congo army, as M23 rebels advance in south of Bukavu - Video: Red Cross buries 18 bodies in mass grave amid Bukavu clashes - M23 fighters seize key city of Bukavu in DR Congo - Rwanda-backed rebels advance into eastern DR Congo's second major city of Bukavu - DRC conflict: Pressure mounts on Rwanda as M23 seize Bukavu - DRC rebels promise security after seizing Bukavu in country's east - Rwandan-backed M23 rebels enter Bukavu in eastern DRC - DR Congo crisis: WFP condemns looting in Bukavu after M23 rebels take key city