Another 1,000 people have been arrested and dozens of prisoners tortured, Pierre Claver Mbonimpa, head of the Association for the Protection of Human Rights and Detained Persons, told The Associated Press.
Mbonimpa said his group has representatives across the nation tallying the death toll and visiting with prisoners. He also said he had personally helped several protesters who suffered torture to get treatment.
A police spokesman, Pierre Nkurikiye, denied the torture allegations but didn't say how many people are in custody over protesting against a third term for President Pierre Nkurunziza.
We continue to be very concerned at the overall level of political violence in Burundi," U.N. Spokesman Stephane Dujarric said Friday. "It's clear that the government needs to respect peoples' rights to demonstrate freely and peacefully and that the rule of law needs to prevail."
Bujumbura has been tense since April 26, when protests began after the ruling party nominated Nkurunziza as its candidate in elections now scheduled for July 15. Protesters say a third term would be unconstitutional.