A group of Nobel laureates have urged China's newly appointed leader Xi Jinping to release dissident and 2010 Nobel Peace Prize laureate Liu Xiaobo.
The 134 Nobel winners who signed the open letter, noted that no government "can restrict freedom of thought and association without having a negative effect on such important human innovation".
The letter was signed by the likes of Mario Vargas Llosa (2010 Literature); Jose Ramos-Horta (1996 Peace); and Kenneth Arrow (Economics 1972).
Mr Liu, who was jailed previously for his involvement in the 1989 Tiananmen pro-democracy protests, was sentenced in 2009 to 11 years in jail for "attempted subversion of power" after co-authoring a bold manifesto for democracy in China.
The international initiative to press Beijing to release Liu is being led by South African Archbishop Desmond Tutu (1984 Peace) and Richard Roberts (1993 Physiology or Medicine), with the support of several non-government organisations, including Solidarity China.
The group's president, Marie Holzman, told Radio Australia's Asia-Pacific program most people had forgotten there was a Chinese Nobel Peace Prize Laureate in jail.
"So through this petition, through this noise, we hope to let the whole world remember that after [Burmese Opposition Leader] Aung San Suu Kyi, who's free now - right now, there's only one Nobel Peace Prize [Llaureate] who's in jail - and that's Liu Xiaobo," she said.
Ms Holzman said Liu's supporters wanted to show Chinese leaders he hadn't been forgotten.
"That is the impression they could've got because the world is so silent about this very exceptional political prisoner."
We feel a moral obligation to remind the world, and the Chinese government, that we care about Liu Xiaobo and that it's a disgrace to keep this man in jail, in spite of the fact that he has committed absolutely no crime.
China expert Marie Holzman
Little is now known about the 56-year-old Liu's current condition - he is said to suffer from hepatitis - due to a curtain of silence drawn across him and his family by China's government, which was deeply embarrassed by the award and reacted angrily.
This makes it difficult to confirm whether Liu is even still at the prison in Liaoning province in north-eastern China where he was initially jailed.
Liu's wife Liu Xia, remains under house arrest at their home in Beijing to prevent her speaking about her husband's case, while his brothers continue to decline media interviews for fear of losing their occasional visitation rights to him.
China lashed out after his 2010 Nobel prize and refused to allow him to attend the ceremony in Oslo - where he was represented instead by an empty chair.
Mr Xi was last month named as the head of the ruling Communist Party and is slated to take over the state presidency from current President Hu Jintao in March as part of China's once-a-decade leadership transition.