The country’s national intelligence agency has warned the threat of a terror attack by Islamic militants is on the rise – less than four months before the games start in August.
Counterterrorism director Luiz Alberto Sallaberry revealed the number of Brazilians who sympathise with Islamic State – also known as Daesh – is increasing.
And he confirmed a “credible threat” to state security from ISIS had been identified.
The warning – from the country’s most senior anti-terror chief – will strike fear in the hearts of the thousands of Brits preparing to head off for the sporting showcase.
Sallaberry said his agency had taken several measures to avert a potential attack – including sharing information with foreign security forces and improved training.
But security experts have warned many Brazilian officials have no idea how big a stage the Olympics is for anyone seeking to sow terror – either through an attack on game venues, infrastructure nearby or the athletes and 500,000 tourists expected to attend.