Guinea Listeni/ˈɡɪni/, officially the Republic of Guinea (French: République de Guinée), is a country in West Africa. Formerly known as French Guinea (French: Guinée française), it is today sometimes called Guinea-Conakry to distinguish it from its neighbour Guinea-Bissau and the Republic of Equatorial Guinea. Guinea shares its northern border with Guinea-Bissau, Senegal, and Mali, and its southern border with Sierra Leone, Liberia, and Ivory Coast. The nation forms a crescent as it curves from its western border on the Atlantic Ocean toward the east and the south. The sources of the Niger River, Gambia River, and Senegal River are all found in the Guinea Highlands. It has a population of 10.5 million and an area of 245,860 square kilometres (94,927 sq mi). The country is a republic. Directly elected by the people, the president is the Head of State and Head of Government. The unicameral National Assembly of Guinea is the legislative body of the country, and its members are directly elected by the people. The judicial branch is led by the Guinea Supreme Court, the highest and final court of appeal in the country. Guinea is a predominantly Islamic country, with Muslims representing 85 percent of the population. Guinea's people belong to twenty-four ethnic groups. French, the official language of Guinea, is the main language of communication in schools, in government administration, in the media, and among the country's security forces, but more than twenty-four indigenous languages are also spoken. Guinea's economy is largely dependent on agriculture and mineral production. It is the world's second largest producer of bauxite, and has rich deposits of diamonds and gold. Human rights in Guinea remain controversial. In 2011 the United States government claimed that torture by security forces, and abuse of women and children (e.g. female genital mutilation) were ongoing abuses of human rights.