Security forces converge in a Tibetan township amid anger over Communist Party links to theft at a monastery.
Four are still held in custody in Tibet's Driru county.
Three of those detained are monks from a monastery where the latest burning protest occurred.
Chinese security forces cut Internet service, set up checkpoints on the roads.
He says Mao Zedong gave him permission to use the flag nearly six decades ago.
The money will be used to repair the burnt 16th century monastery.
The move raises the prospect of Jiang Zemin being arrested if he travels overseas.
A 430-year-old prayer hall is burnt to the ground.
Lobsang Sangay cites growing Tibetan resistance to 'tough' Chinese policies.
They are held after a wave of detentions of villagers who refused orders to fly the Chinese national flag.
Chinese authorities want flags to be put up at newly built community centers in Kardze villages.
He had called for Tibetan unity and language rights and an end to Chinese rule.
He becomes the 123rd Tibetan to self-immolate in China.
Told by local officials not to assemble, they had submitted a petition in writing.
Tibetan villagers push back against forced displays of loyalty to the Chinese state.
The move follows Tibetan appeals to halt environmental damage from Chinese mining operations.
His brothers were killed by Chinese police during a raid on his family home.
They had asked for compensation for farmland taken by authorities almost 30 years ago.