A police car is seen in front of the Rocinha slum in Rio de Janeiro May 5, 2014. Rio government has increased the presence of Police Peacekeeping Unit (UPP) in the streets of the city and the slums of Alemao complex, in the north zone of Rio, and the Rocinha slum, in the south zone, after the unrest of pass weeks, according to local media. REUTERS/Sergio Moraes (BRAZIL- Tags: CIVIL UNREST)