Tensions have run high over the islands, known as Senkaku in Japanese and Diaoyu in Chinese, since the Japanese government nationalized some of them in September in a bid to prevent Tokyo's right-wing governor from buying them. Violent anti-Japanese protests broke out in Chinese cities, and Beijing has sent ships to conduct near-constant patrols near the uninhabited rocks.
Hong also attacked the Dalai Lama for reportedly accusing the Chinese government of failing to investigate the root cause of despair and hopelessness among Tibetans that many say have prompted people to take their lives as a form of protest. China has long accused the Dalai Lama and his supporters of inspiring such acts, despite his condemnation of all forms of violence.
"Not only did the Dalai not condemn them, but he actually glorified these acts, which are against the national law and religious principles," Hong said.
On Monday, a 24-year-old Tibetan man set himself on fire at a prayer ceremony in Tongren county in western China's Qinghai province, becoming the seventh person in six days to self-immolate in the region, the rights group Free Tibet said.
Nyingkar Tashi is reported to have died in the protest in which he called out for freedom in Tibet and for the longevity of the Dalai Lama, the group said. A statement from the self-declared Tibetan government-in-exile in Dharmsala, India, provided similar details.
The official Xinhua News Agency also reported the man's death and said a second man, identified as Nyangje Lhabon, 20, set himself ablaze in the same county a few hours later and died.
A Tongren government official who picked up the phone said he could not comment, while Ma Chunyin, head of the Tongren Communist Party Propaganda Department, said he was not aware of any reported self-immolation.
Tibet support groups overseas have said the increase in protests in recent days is meant to highlight Tibetan unhappiness with Chinese rule as the country's leaders hand over power to younger successors at a party congress in Beijing.
"Throughout the 18th Party Congress the new unelected leaders have been reminded on an almost daily basis of Tibetans' rejection of Chinese rule, and of the terrible failure of policies to cement the occupation," Free Tibet Director Stephanie Brigden said.
The Dalai Lama fled to India following an abortive 1959 uprising against Chinese rule over Tibet. He denies seeking the region's independence, saying that he wishes Tibetans to enjoy real autonomy and protection of their traditional Buddhist culture.
-AP