Reporters Without Borders (Reporters Sans Frontieres), which advocates freedom of information around the world, on Tuesday accused Chinese authorities of having "murdered" Nobel Peace Prize-winning dissident Liu Xiaobo by denying him proper medical care during his incarceration.

"We can clearly state that Liu Xiaobo was murdered by the lack of care," RSF Secretary-General Christophe Deloire told a news conference held to formally launch an RSF bureau in Taipei, the Paris-headquartered media rights watchdog's first in Asia.

Deloire rejected the claim that Chinese authorities did not know that Liu, who died last Thursday of multiple organ failure related to liver cancer, was seriously ill until just weeks before his death.