Outer Islands of Mauritius is the single first-order administrative division of the country and consists of the islands of Mauritius and several outlying islands. It is under the responsibility of the Ministry of Local Government and Outer Islands. The Constitution of Mauritius provides that the country includes the islands of Mauritius, Rodrigues, Agaléga, Saint Brandon (Cargados Carajos), Tromelin and the Chagos Archipelago, including Diego Garcia and any other island comprised in the State of Mauritius. The Government of Mauritius claim sovereignty over the Chagos Archipelago, which the United Kingdom split from its territories to create the British Indian Ocean Territory before its Independence in 1965 (See Chagos Archipelago sovereignty dispute). Mauritius also claims sovereignty over Tromelin island from France, small islands that lie 430 km to the north-east of Mauritius.