In preparation for the 2014 World Cup, Brazilian police have been working hard to cut crime.

Their target has been the gangs that run the shantytowns.

Al Jazeera's Gabriel Elizondo reports from the Rio de Janeiro slum Complexo do Alemao, where the police have reclaimed control.

About 1,700 soldiers and 150 police now patrol the slum, but drug trafficking is still continuing.