The International Air Transport Association (IATA) and African Airlines Association (AFRAA) have blamed frequent air crashes in Africa on weak economies, poverty and corruption. Countries such as Angola, Democratic Republic of Congo (DRC), Liberia, Sudan, Ethiopia and lately Nigeria and Gabon were listed as those with growing space misfortunes in the last two years. While AFRAA considered these countries as lacking established sound and well regulated civil aviation sector, IATA saw the bane of Africa's aviation under-development as rooted in inadequate infrastructure, as reported by Transparency International.