Xinhua News Agency said the foreigners watched an unspecified documentary in a hotel room and later some of them watched video clips that advocated terrorism. Police also found similar clips on a cellphone belonging to one of the South Africans, Xinhua said.
It cited the foreign affairs office of Ordos city in China's Inner Mongolia region, where police had stopped the 10 South Africans, 9 Britons and one Indian on July 10 as they were going to fly to Xi'an, home of the terracotta warriors and their next stop on a 47-day tour of the country. The British Embassy had said the group included nine Britons and two with dual British-South African nationalities.
"It can only be assumed that junior officials who made the initial arrest in Inner Mongolia made a mistake, due to perhaps their unfamiliarity of the English language," the statement said.
Xinhua said that five South Africans, three Britons and one Indian national were criminally detained on July 11 in connection with a law that "stipulates punishment for allegedly organising, leading or joining terrorist groups."
It said the nine "admitted to their illegal acts and repented," without elaborating. It said police treated the case leniently and deported them last Saturday.
The other 11 were deported on Wednesday.
Calls to the foreign affairs office in Ordos rang unanswered. A man on duty at Ordos police, who only identified his surname, Han, said he had no information on the case.

