Angry demonstrators from a slum set ablaze barricades of tires yesterday, forcing two main roads closed as they hurled bottles to protest the death of the 25-year-old dancer, whom Brazilian media say was killed after police mistook him for a drug trafficker.
A 27-year-old man described as mentally disabled was killed after being shot in the head during the protests, media quoted city hall officials as saying. It was not immediately clear who fired the shot.
Many in this emerging economic power are outraged that billions of dollars have been spent on infrastructure for the games instead of public housing, roads, more aid for the poor and ending violent crime.
The latest trouble began in the early evening in the Pavao-Pavaozinho favela, which nestles above the well-heeled tourist centers of Copacabana and Ipanema, before quickly spreading, witnesses said.
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Another resident said electricity supplies had been cut in the area and the situation remained tense. The web site G1 reported violence had spilled over into Ipanema as some youngsters went on the rampage there, pursued by police.
Police have been cranking up efforts in recent months to clear favelas of violent criminals before the month-long World Cup kicks off on June 12.
Although a huge slum "pacification" program was launched six years ago to improve security in the city, the gangs have been fighting back.