Tibetan lama Tenzin Delek Rinpoche has died in a Chinese prison 13 years into serving a sentence for what rights groups say were trumped-up charges that he was involved in a bombing in a park. He was 65.

New York-based Students for a Free Tibet said Monday that relatives were informed of his death Sunday. Police confirmed the death but declined to give further details.

Tenzin Delek was arrested in 2002 in relation to a blast in Chengdu city that injured three people. He was sentenced to death on charges of crimes of terror and incitement of separatism a few months later.

His family members last year unsuccessfully applied for medical parole for him.

The Dalai Lama recognized Tenzin Delek as a reincarnated lama in the 1980s.