Khartoum (state)
Khartoum State () is one of the eighteen states of Sudan. Although it is the smallest state by area (22,142 km), it is the most populous (5,274,321 in 2008 census). It contains the country's second largest city by population, Omdurman, and the city of Khartoum, which is the capital of the state as well as the national capital of Sudan. The capital city contains offices of the state, governmental and non-governmental organizations, cultural institutions, and the main airport.
Kosti, Sudan
Kosti (also Kusti) is one of the major cities (population was 173,599) in Sudan that lies south of Khartoum, the capital of Sudan, and stands on the western bank of the White Nile river opposite Rabak(the capital of the White Nile state)where there is a bridge. The city is served by Kosti Railway Station and Rabak Airport.