Brazil’s anti-terror chief has admitted there is a ‘credible threat’ that Daesh (ISIS) will target the Rio Olympics and that numerous measures are being taken to prevent an attack.

With just three months until Games begin, the Brazilian national intelligence agency said the country is preparing for all eventualities.

Brazil has long regarded itself as an unlikely target of extremists thanks to its historical standing as a non-aligned, multicultural nation that is free from enemies.

However, counter-terrorism director Luiz Alberto Sallaberry said in a statement the threat had increased in recent months due to attacks in other countries, and a rise in what he described as the number of Brazilian nationals suspected of sympathising with Islamic State terrorists.