Bangui, city, capital of the Central African Republic, located on the west bank of the Ubangi River. It is connected by an extended 1,100-mile (1,800-km) river-and-rail transport system with Pointe-Noire on the west-central African coast and with Brazzaville (both in the Republic of the Congo). The river port development includes a quay 1,300 feet (400 metres) long and an oil port downstream. Diamonds, cotton, timber, coffee, and sisal are shipped from Bangui.