Slum dogs: Marauding cartel foot soldiers shoot up Rio favela leaving 24 of the gangsters dead and one cop during gun battle with 200 heavily armed officers
Rio de Janeiro's Civil Police announced 25 people, including a cop, were killed during a shootout on Thursday morning
The fallen cop was identified as André Frias. The 45-year-old was assigned to the Drug Enforcement Office
The suspects were alleged members of the Comando Vermelho, considered the most powerful drug trafficking network in Rio de Janeiro
The Civil Police was investigating a drug trafficking gang in the slum of Jacarezinho when it was attacked with gunfire