Explanation:

Lake Tanganyika, located in Africa is shared by four countries namely Tanzania, the Democratic Republic of the Congo (DRC), Burundi, and Zambia. This is the second-oldest, second deepest and the longest freshwater lake in the world.
The lake is recently in news, as “Save the Children” an independent organisation for children has stated that significant rise of Lake Tanganyika due to climate shocks has led to 84% internal migration in Burundi. In Burundi, most people live along the shores of this lake.