A prisoner threatens to kill a hostage, while two others are tied up, at the Campo Mourao police station in the southern Brazilian state of Parana. (Dirceu Portugal / EPA)
Firefighters work to extinguish a fire in a bus that was burned in Sao Paulo, Brazil. (Andre Penner / AP)
People watch a burning bus in Sao Paulo, Brazil. (Andre Penner / AP)
People walk past a private bank agency burned out with molotov cocktails by unidentified men the previous night in the Capao Redondo neighborhood, southern Sao Paulo, Brazil. (Mauricio Lima AFP/Getty Images)
Panic spreads among passengers arriving in the main hall of the departures sector of the Congonhas domestic airport in Sao Paulo, Brazil, after authorities ordered the facility cleared of civilians due to a bomb threat. (Venderlei Almeida AFP/Getty Images)
A Federal Police officer wearing a valaclava keeps watch in the main hall of the departures sector of the Congonhas domestic airport in Sao Paulo, Brazil, after authorities ordered the facility cleared of civilians due to a bomb threat. (Venderlei Almeida AFP/Getty Images)
View of the main avenue in Sao Paulo and the 173 km long traffic jam. Workers went home early due to gangs’ violence. (Venderlei Almeida AFP/Getty Images)
