BBC News
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media captionAerial footage shows suspects of a wanted drug gang trying to escape police
At least 25 people including a police officer have been killed in a shootout in Rio de Janeiro, according to local media.
The shootout took place during a police operation in a favela in the Jacarezinho area of the city.
Police launched the operation after receiving reports that drug traffickers were recruiting children for their gang.
Two passengers on a metro train were hit by bullets but survived.
Police in the Brazilian city confirmed the death of one of their officers, Inspector Andre Leonardo de Mello Frias. A statement on Facebook said "he honoured the profession he loved and will be missed".