Addis Ababa, Jul 13 (Prensa Latina) An official source stressed on Thursday that Africa is rich in a great dela of resources despite its underdevelopment, and that restrictions on free movement of people and goods across the continent should be lifted to accelerate integration, as stated by Kenyan Cabinet Secretary for Foreign and Diaspora Affairs Dr. Alfred Mutua at the opening of the 43rd Ordinary Session of the Executive Council of the African Union (AU) Commission in Nairobi.