More clashes broke out in Tibet between protestors and Chinese police on Tuesday.

The riots prompted French President Nicolas Sarkozy to say that he might boycott the opening ceremony of the Beijing Olympics if China continues its crackdown in Tibet.

"Our Chinese friends must understand the worldwide concern that there is about the question of Tibet, and I will adapt my response to the evolutions in the situation that will come, I hope, as rapidly as possible," Sarkozy said.

A demonstration by monks and nuns in Garze turned violent after hundreds of people joined in. The police tried to suppress the crowd, but protestors reportedly fought back with knives and stones. One policeman died in the riots.

The Chinese government said at least 22 people have died since anti-government riots broke out on March 14. Nearly 140 Tibetans have been killed.

Chinese authorities have promised tighter security during the summer Olympics in Beijing.

But violent protests in Tibet, the most serious challenge in nearly two decades to China's rule in the region, are forcing human rights campaigners to re-examine their approach to the Aug. 8-24 Olympic Games.

Source: The Associated Press