The Dalai Lama turned 90 on Sunday surrounded by thousands of followers, who thronged the Himalayan town of Dharamshala, where the spiritual leader of Tibetan Buddhism has been living in exile since fleeing Chinese rule in Tibet in 1959.

The Dalai Lama has announced that he will have a successor after his death, continuing a centuries-old tradition that has become a flashpoint in the struggle with China’s Communist Party over Tibet’s future.

The 14th Dalai Lama turns 90 on Sunday and is expected to give his clearest signal yet on how his reincarnation will be determined at the event in Dharamshala, India, where the Dalai Lama has lived since fleeing Tibet in 1959 after a failed uprising against Chinese rule.