Genro’s security assessment came days after bloody clashes between slum gangs and police left 45 people dead and saw a police helicopter shot down.

"If the current level of public security investment continues as it is, we will not end up with a satisfactory situation," Genro told reporters after talks with Rio governor Sergio Cabral. "As such, we have to triple the rhythm of work and necessary investment to improve public security and in 2016, we will be prepared."

The money will be used to purchase police equipment and improve state prisons. Genro said that 121.3 million reais ($69.7 million) had already been injected into Rio's security sector since the beginning of the year.