Lakes (al-Buhayrat) was one of the ten states of South Sudan. It has an area of 40,235 km². Rumbek is the capital of the state. Lakes is in the Bahr el Ghazal region of South Sudan, in addition to Northern Bahr el Ghazal, Western Bahr el Ghazal, and Warrap states. Bahr el Ghazal itself was a former province which was split from the Anglo-Egyptian mudiriyat, or province of Equatoria in 1948. The eastern border is the White Nile with Jonglei on the opposite bank. To the northeast lies Unity State. Other borders include Warrap State towards the northwest, Western Equatoria to the south and west, and Central Equatoria to the south.