Nearly 50,000 people cheered in celebration when Rio de Janeiro was announced as host of the 2016 Olympics, jumping and shouting in a Carnival-like party on Copacabana beach.

A huge roar was heard at the famed beach the moment International Olympic Committee President Jacques Rogge said the words "Rio de Janeiro" to announce the winner in Copenhagen on Friday.

As popular President Luiz Inacio Lula da Silva and football great Pele celebrated in Denmark, the Cariocas, as Rio citizens are known, raised their arms to celebrate on Copacabana, frantically waving flags and hugging each other.

Silva called the win a "sacred day" as he was interviewed in Portuguese by Brazilian reporters in Copenhagen. Brazil's passion, he said, helped Rio win the Olympics against Madrid, Chicago and Tokyo.