China's Nobel peace prize laureate Liu Xiaobo has been transferred on parole from prison to a hospital for terminal cancer treatment, his lawyer said Monday, but concerned supporters called for his unconditional release.

Liu, who has about three years of his 11-year sentence to serve, was diagnosed with late-stage liver cancer on May 23 and granted medical parole days later, his lawyer Mo Shaoping told AFP.

The 61-year-old democracy campaigner was being treated at a hospital in the northeastern city of Shenyang, where he was imprisoned.
"He has no special plans. He is just receiving medical treatment for his illness," Mo said.

The writer was sentenced in 2009 for "subversion" after spearheading a bold petition for democratic reforms. He was awarded the Nobel prize while in jail a year later and was represented by an empty chair at the ceremony in Oslo.

Supporters demanded that Liu be granted the best medical care and criticised his treatment so far.

While the Nobel Committee said it was "delighted" to learn that Liu was finally freed, it "strongly regrets that it took serious illness before Chinese authorities were willing to release him from jail".

"Chinese authorities carry a heavy responsibility if Liu Xiaobo, because of his imprisonment, has been denied necessary medical treatment," it said in a statement.

The committee called for his unconditional release and said he should be offered the best possible treatment in China or abroad.

Patrick Poon, China researcher at rights group Amnesty International, urged authorities to ensure Liu has access to his family.

Poon also called for Liu and "all others imprisoned solely for exercising their human rights" to be immediately and unconditionally released.

"Adding injury to insult, Liu Xiaobo has been diagnosed with a grave illness in prison, where he should never have been put in the first place," Poon said.

Liu's release was not reported by state media and his name remained blocked from searches on the Weibo social media website.

- Bold petition -

Asked about Liu's parole, foreign ministry spokesman Geng Shuang told a regular news briefing: "I am not aware of the situation you're talking about."

Liu is one of only three people to have won the Nobel award while jailed by their own government.
China strongly condemned the prize as foreign interference in its internal affairs.

Diplomatic ties and trade talks between Beijing and Oslo were frozen, with China halting Norwegian salmon imports. Relations were only normalised last December.

The international community has for years been calling for Liu's release.

Liu was arrested in 2008 after co-writing Charter 08, a bold petition that called for the protection of basic human rights and reform of China's one-party Communist system.

Charter 08, which was posted online, specifically demands the abolition of subversion as a criminal offence.

Liu's wife Liu Xia has been under house arrest since 2010. She suffered a heart attack in 2014, when she was diagnosed with depression after years of detention, a rights group said at the time.
She could not be reached for comment on Monday and an automated message said her phone was no longer in service.

- Tiananmen role -

Liu is also known for his efforts to help negotiate the safe exit from Tiananmen Square of thousands of student demonstrators on the night of June 3-4, 1989 when the military bloodily suppressed six weeks of protests in the heart of Beijing.

He was arrested immediately after the crackdown and released without charge in early 1991.

Liu was rearrested and served three years in a labour camp from 1996-1999 for seeking the release of those jailed in the Tiananmen protests and for opposing the official verdict that their actions amounted to a counter-revolutionary rebellion.

Liu, who holds a doctorate in Chinese literature, was once a professor at Beijing Normal University, but was banned from teaching at state institutions after his involvement in the 1989 demonstrations.

He was also banned from publishing in China but many of his writings advocating greater democracy and respect for human rights appeared in Hong Kong and overseas Chinese publications.

Some of these articles served as evidence in his most recent trial.

Liu was a leading member of the Independent China PEN Centre, a grouping of Chinese writers. PEN Hong Kong called for his unconditional release.

"At a time when China wants to have a greater international role, it is only fitting that it should show humanity and compassion towards a man who has never committed any violent crime, but has dedicated his life to literature and free expression," it said on its website.