One of China's best-known dissident lawyers says his newly published memoir is his latest act of resistance to show he has not been silenced by years of solitary confinement and torture.

In an exclusive interview with The Associated Press, Gao Zhisheng says he wrote his book "to expose the truth and crimes of this regime."

The Chinese-language book, titled "Stand Up China 2017 — China's Hope: What I Learned During Five Years as a Political Prisoner," was launched in Hong Kong on Tuesday at an event attended by Gao's daughter.

In the book, Gao recounts the torture he says he endured, as well as the three years he spent in solitary confinement. China's Public Security Ministry had no immediate response to a request for comment on Gao's book.