The United Nations human rights office has strongly criticised a police raid against suspected drug traffickers in Rio de Janeiro, amid allegations of abuse and extrajudicial executions.
The deadliest police operation in the city’s history has left 25 dead, including a police officer.
Residents say police killed suspects who wanted to surrender and entered homes without a warrant.
Police have denied any wrongdoing, saying officers acted in self-defence.
Rio de Janeiro is one of Brazil’s most violent cities, and vast areas are under the control of criminals, many of them linked to powerful drug-trafficking gangs. Security forces are often accused of disproportionate force during their anti-crime operations.
Thursday’s raid in Jacarezinho, one of the city’s largest slums known as favelas, was carried out by about 200 police officers and an armoured helicopter with a sniper. The area is dominated by Comando Vermelho, or Red Command, one of Brazil’s largest criminal organisations.
A television helicopter filmed heavily armed suspects jumping from rooftops, while desperate residents posted videos on social media showing intense shootouts as they claimed police invaded their houses and used excessive violence.