M23 fighters allied with Rwandan troops on Sunday entered the centre of Bukavu, another key city in the eastern Democratic Republic of Congo. Kinshasa has accused Rwanda of seizing land in the area for mining and agriculture purposes. Rwanda says it has taken defensive measures against ethnic Hutu militias such as FDLR in the region, a claim that is not credible, according to Thierry Vircoulon, Associate Researcher at IFRI's Africa Centre.