Burundi has shut its border with DR Congo, a Burundian military source was quoted as saying by AFP news agency. Burundi has several thousand troops in eastern DR Congo in support of the government. About 200,000 people have fled their homes in eastern DR Congo since the latest round of fighting started early this month, the UN says. The latest offensive comes nearly a year after the M23 rebels seized control of Goma and Bukavu, the other two main cities in eastern DR Congo. Eastern DR Congo has been wracked by conflict for more than 30 years, since the 1994 Rwandan genocide.