Brazilian police say about 2,000 officers met no major resistance when carrying out the planned occupation of a complex of shantytowns long held by Rio de Janeiro’s largest drug-dealing faction.

Police said in a release that the Sunday morning operation took about 20 minutes. In the Jacarezinho slum, six shots were fired once police arrived, and one suspect was injured while trying to set fire to a barricade meant to keep officers out.

The operation started at dawn and the Brazilian and the state flags were raised in the centre of the complex by 10am.