Hu Jintao argued about official papers before being escorted out of congress

Footage shows former Chinese president involved in apparent disagreement over documents

China's former leader Hu Jintao was arguing about official papers, moments before he was escorted off the stage at a key Communist party meeting in Beijing, new footage shows.

Hu's apparently reluctant departure from the stage at the 20th congress of the Chinese Communist party (CCP) was a rare moment of unscripted drama at what was otherwise a carefully choreographed week of political theatre.