The African Development Bank (AfDB) promised Tuesday to invest $4.4 billion (3.89 billion euros) in infrastructure in over the next seven years.
The sum will help to finance 30 projects, ranging from electricity networks and transport to information technology and communication and improve cross-border trade, it said in a statement.
Spending will be focused on Cameroon, Chad, Republic of Congo, Democratic Republic of Congo, Gabon, Equatorial Guinea, and the Central African Republic.
Growth in central Africa doubled in 2018, with GDP expanding by 2.2% against 1.1% a year earlier, according to AfDB figures.
The rate is still far behind the average for sub-Saharan Africa, which was 3.5 percent.