The arrest of Rogerio Avelino da Silva came amid an operation in the northern part of the city that included almost 3,000 police and army soldiers who have been sent in to help stabilise areas of frequent conflict.
Police and soldiers on Wednesday captured one of Rio de Janeiro's most wanted drug trafficking bosses, officials said.
Police say Rogerio 157 controlled part of the sprawling Rocinha favela, which he took over after the arrest of the drug lord known as "Nem" for whom he used to work as a bodyguard.
"The trafficker Rogerio Avelino da Silva, or Rogerio 157, was detained in the community of Arara, in (Rio's) Northern Zone, in a joint operation of security forces... with support from the armed forces", Rio de Janeiro's state security secretary tweeted.
Rogerio 157 was wanted for drug trafficking, homicide and extortion.
The arrest of the man known to most by his nickname "Rogerio 157" came after months of failed attempts.
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