Chinese news agencies censored portions of Obama's speech that mentioned communism and and the silencing of dissent. More from the BBC:

China Central Television, the country's main broadcaster, aired the speech live with a simultaneous Chinese translation.

But when the translator got to the part where President Obama talked about facing down communism, her voice suddenly faded away.

The programme suddenly cut back to the studio, where an off-guard presenter had to quickly ask a guest a question.