Brazil plans to deploy around 60,000 security forces for the 2016 Olympic Games in Rio de Janeiro.

The security operation would be larger than the 40,000 deployed for the 2012 Games in London, but smaller than the 75,000-strong in Athens in 2004, said Reuters

Unlike when the city hosted the 2007 Pan-American Games, authorities are not considering sending troops to the favelas, or hillside slums, known for drug violence as "security has improved substantially in Rio," said Reuters.

The security operation at the Olympics was expected to cost about $195.10 million, according to previous estimates from the defense ministry.