Terrorism is the “the number one worry” at the Rio 2016 Olympic and Paralympic Games, the city’s security chief Jose Mariano Beltrame has claimed in the wake of the attacks in Paris which killed at least 130 people on Friday (November 13).
Beltrame’s comments come following a series of coordinated attacks, including at the Stade de France during France’s football match with Germany, in the French capital and he says the authorities are targeting a “gold medal in security” when the Games come to Rio in August next year.
“Brazil does not have a history of terrorism, but always works with this priority,” he said.
“We receive bulletins on possible threats but we have the means to boost our forces where necessary.
"We are ready - every institution knows what to do.
“We want a gold medal in security.”
Despite Brazil having not been the subject of terrorist attacks in the past, the horrific assault in Paris has left the whole world on red alert, with a growing fear that the Olympics, the largest sporting gathering in the world, could be the subject of another act of terrorism in future.
At the 1972 Games in German city Munich, 11 members of the Israeli team were held hostage and killed by Palestinian group Black September.
Eric Rudolph, a former explosives expert for the United States army, meanwhile, planted a bomb at the Atlanta 1996 Olympic Park which killed two people and injured more than 100.
Around 65,000 police officers and soldiers, with another 15,000 in reserve, are due to be deployed for the Games in Rio, double the amount from London 2012, and French police have begun training their Brazilian counterparts in crowd control ahead of the event.
“There is a real possibility of a terrorist attack due to the high visibility,” Colonel Andrei Silva, with the Brazilian police force's Shock Battalion, told Agence French Presse.
“We have to prepare more.
“We definitely don't want this to happen in Brazil."
The attacks in Paris raised the security threat for a number of future major sporting events, including next year’s European Football Championships in France and the Olympics and Paralympics.
Two international football friendlies, between Belgium and Spain in Brussels and Germany and The Netherlands were cancelled this week, the latter due to a “concrete security threat” in Hannover.
European Rugby Champions Cup matches were also postponed as a mark of respect.
France’s friendly match with England at Wembley Stadium on Tuesday (November 17) went ahead in spite of the attacks on what proved to be an emotional occasion in London.
November 2015: Germany's clash with the Netherlands cancelled due to "concrete security threat"
November 2015: Belgium's friendly with Spain cancelled due to rising security concerns in wake of Paris attacks
November 2015: UEFA confirm Euro 2016 to remain in France as Bach claims Paris 2024 will not be affected by terrorist attack
November 2015: Euro 2016 organisers against cancelling event in France despite Paris terrorist attacks
November 2015: Paris 2024 organisers describe terror attacks as "unforgivable" as Bach condemns "barbaric" acts