Free Liu Xiaobo campaign hots up in Hong Kong
Global petition calling on Beijing to release Nobel laureate will be handed to liaison office

Hongkongers are among hundreds of thousands of people who have signed a global petition demanding Beijing release Liu Xiaobo - the only Nobel peace laureate in jail and the world's most prominent political prisoner.
The online campaign was launched by Archbishop Desmond Tutu, a fellow Nobel laureate. By 4pm yesterday, it had collected more than 422,000 signatures, including those of about 140 Nobel laureates.
The petition calls on president-in-waiting Xi Jinping to release Liu, who has been in jail since December 24, 2009, and his wife Liu Xia , who has been under house arrest since October 2010.
"This flagrant violation of the basic right to due process and free expression must be publicly and forcefully confronted by the international community," Tutu says in the petition, which he launched late last year.
Liu, one of the authors of the Charter 08 manifesto, which calls for democracy on the mainland, is serving an 11-year jail term handed down in 2009 for "inciting subversion of state power".
He was awarded the Nobel Peace Prize in 2010.
*Patrick Poon Kar-wai, the Hong Kong representative of Friends of Liu Xiaobo, said Amnesty International would submit the petition, signed by people in 130 countries, to the central government's liaison office. He called for more Hongkongers to join the campaign as "the threat to freedom of expression could otherwise spread to Hong Kong".
