Observers welcome the move, which comes ahead of a planned trade agreement.
Many of the victims were shot and others were burned in their homes, MSF reports.
They call on the government to immediate free two Reuters journalists arrested on Tuesday.
More than 3,300 of Bullaqsu’s residents are jailed or in political re-education camps.
The move further tightens Chinese authorities' restrictions at the once-sprawling Tibetan Buddhist study center.
A letter calling on the city's party chief to resign over the mass eviction of low-income migrants from elsewhere in China is quickly expunged from social media sites.
The Committee to Protect Journalists says many jailed journalists have been given 'a slow death sentence' through lack of adequate medical care.
The campaign is a ‘gross violation’ of human rights, a watchdog says.
Top American diplomat says US open “to talk anytime” North wants, but White House says time not ripe.
Win Myat Aye says the government is prepared to accept those who want to return to northern Rakhine state.
The Reuters reporters are accused of illegally possessing government documents on the crisis in northern Rakhine state.
At a hearing in Washington, they are warned that actions are needed to save Cambodian democracy.