The International Air Transport Association (IATA) has said global passenger traffic rose 4.9% year-on-year in September, led by robust growth for carriers in China, Latin America and the Middle East. Carriers in the Middle East region saw by far the strongest traffic growth, with demand climbing 13.3% year-on-year. This was down compared to the 17% growth recorded in August, but the growth comparison for August was inflated by seasonal impacts, with Ramadan dampening traffic growth during August 2011. September capacity rose 11.3% and the load factor strengthened to 78.7%, IATA said. Cargo traffic in the region also rose 16.3% due to a 6.9% increase in capacity, pushing up the load factor 3.8% points to 46.1%, it said.