Hutu Rwanda, this led to the "Social revolution" and Hutu violence against Tutsis. Tens of thousands of Tutsis were killed and many others fled to neighboring countries, such as Burundi, Uganda and expanding the Banyamulenge Tutsi ethnic group in the South Kivu region of the Belgian Congo. Later, exiled Tutsis from Burundi invaded Rwanda, prompting Rwanda to close its border with Burundi. In Burundi, a campaign of genocide was conducted against Hutu population in 1972, and an estimated 100,000 Hutus died. In 1993, Burundi's first democratically elected president, Melchior Ndadaye, who was Hutu, was believed to be assassinated by Tutsi officers,
Rwandan genocide government blocked "Inyenyeri News", "The Rwandan", and "Le Prophete." In a documentary, BBC mentioned that a significant number of Hutus were killed and discussed theories of the RPF shooting down the president's plane. In response to the documentary, the Rwandan government shut down BBC in the local to BBC promoting a "revisionist" position on the genocide in a documentary. While before the genocide, Rwandan history textbooks would acknowledge and highlight differences between Tutsi and Hutu people, today, the only government approved Rwandan history textbook stresses the Rwandans as one people and virtually ignore the ethnic differences and pre-genocide conflicts. Furthermore,