Forum shows ISIS plans to use homemade bombs at Rio Olympics
Supporters of the Islamic State (ISIS) plan to use homemade bombs, handguns and assault rifles to "spill the blood of sinners" during the Rio Olympic Games, according to messages posted on a public online forum. Found by Binary Sec, an anti-ISIS hacking group, people using this forum also plan to tamper with fireworks in the run up to the event. The Brazilian Intelligence Agency has received information of such threats, with the state deploying 85,000 security personnel, double the number used in London’s 2012 Olympics.

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Messages found on a public online forum used by ISIS supporters in the US and Brazil shows the terror group want to use handguns, assault rifles and home-made bombs to carry out attacks during the games next month.

The forum includes chilling pictures of deadly weapons – including an AK47 and a Kalashnikov – and mention of Rio de Janeiro, where thousands will gather for the opening ceremony on August 5.

The forum was uncovered by anti-ISIS hacking group Binary Sec, which aims to combat jihadist propaganda online.

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It comes after Brazilian and Portuguese media revealed last month that ISIS militant Ismail Abdul Jabbar al-Brazili, dubbed "The Brazilian", was attempting to recruit would-be jihadists in the country.

In the online forum, one post addressed to fellow "brothers" and dated on July 11 said someone was trying to find ISIS recruiter al-Brazili within three weeks – when the games are due to kick off.

Another post, shared by "Wolf" on June 18, shows an AK-47 placed on the floor alongside the caption: "We are expecting a larger audience, will be soon, the blood of sinners will fall and we will show the real power of God."

Writing of "improvisation" with explosive material, the same poster added: "There are many dealers selling fireworks, if you have knowledge, prepare some explosions for the big day."

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Binary Sec claims "Wolf" is originally from the US and is now acting as a weapons dealer for ISIS in Brazil.

"In just two months got a gun here, you do not need much," Wolf writes. "Some of these suppliers are on our side, we have plenty of resources for our actions."

Commenting on a picture of a sinister-looking automatic weapon, Wolf writes: "I believe that one of our prepared group could launch an attack so get the party times."

Binary Sec have reported the findings to the relevant authorities.

A spokesperson told Daily Star Online: "We know it is ISIS plotters, they are asking each other where their new Telegram chat is and are all plotting to spill blood 'within 3 weeks'.

"We have done research to make sure these [threats] are legitimate."

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The forum has received no new posts this month suggesting its users have shown security fears.

Jihadists on a secretive Telegram channel – an encrypted messaging service – today declared themselves an ISIS cell and pledged allegiance to leader Abu Bakr al-Baghdadi.

“If French police couldn’t stop France attacks, then their training Brazil’s police will serve no use," it said on the new channel.

However, an administrator later said the channel is only being used to repost ISIS news.

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Earlier this year Brazilian intelligence chiefs said there is a "credible threat" that the terror group will carry out a Paris-style terror attack at the 2016 games.

With the games just weeks away, the intelligence agency said they are preparing for all eventualities.

Due to its multi-cultural social make-up, Brazil is not typically a target for terror.

But following a spate of attacks in France, Germany and across the Middle East, counter terrorism director Luiz Alberto Sallaberry said the threat had increased in recent months.

Olympic organisers plan to deploy around 85,000 security personnel for the games, double the number used in London in 2012.