Obama used an alternative exit. On the tarmac, a quarrel broke out between a presidential aide and a Chinese official who demanded the journalists traveling with Obama be prohibited from getting anywhere near him. the Chinese official yelled. The dispute escalated when a Chinese official tried to keep Susan Rice, Obama's national security adviser, away from her boss. Two Chinese officials — one working to assist the American delegation — had to be physically separated after trying to hit each other outside an event.

Source: ABC News September 03, 2016 19:00 UTC