The White House has paid tribute to the pro-democracy protesters who stood up against the Chinese government in Tiananmen Square 25 years ago, and called on Chinese authorities to account for those who were killed, were detained or went missing during and after the protests.
Press secretary Jay Carney said the US "will always speak out in support of the basic freedoms the protesters at Tiananmen Square sought".
Mr Carney praised China for "extraordinary social and economic progress" over the last three decades and urged the Chinese government to guarantee "universal rights and fundamental freedoms" to all its citizens.
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