DEPRAVED ISIS extremists have published a terror manual detailing how “long wolf” fanatics should target the Olympic Games in Rio.

The brainwashed killers posted the step-by-step guide, which includes 17 different attack methods, on social network Telegram.

8 Wicked ISIS extremists are using social network Telegram to encourage attacks on the Rio Games Credit: Twitter

8 South American group Ansar al-Khilafah Brazil has pledged support for ISIS via Telegram Credit: Twitter

According to US counter terrorism expert Rita Katz, the terrifying manual featured plots on airports and public transport, random knife attacks, poisoning innocent people and kidnapping hostages.

The warped thugs also urged “lone wolves”, like the Nice terror attacker Mohamed Bouhlel, to target the sporting event in Rio which kicks off on August 5.

This week it emerged that a Brazilian Jihadist group had pledged allegiance to ISIS – weeks before the start of the Olympic Games.

Extremist monitoring agency SITE, which terror expert Katz works for, reported that the group created a channel on Telegram called ‘Ansar al-Khilafah Brazil’.

related stories Meet the mascots! Here's everything you need to know about the characters representing the Rio 2016 Olympic Games You won't want to miss it! When do the Olympics start? Everything you need to know about Rio 2016 DEADLY DUOS Tales of twin terrors as rivalries drive identical siblings to KILL each other KIM Jong-unsettling North Korean Cold War-style spy transmissions spark nuclear terror attack fears RIO DE JIHADI Fears of terror attack at Olympics after extremist group pledges allegiance to ISIS MEMORIAL OF HATE Nice terror mourners spit and URINATE on huge 'shrine of shame' at point where Bastille Bastard was killed 'WE FEARED ANOTHER NICE' Terror on high street as runaway bus ploughs down road after driver 'leaves handbrake off' 'disturbed loner' Bastille Day killer had no links to ISIS but was a violent misfit 'obsessed with terrorism' Movie canned Idris Elba backs the decision to pull his thriller Bastille Day following Nice terror attack Pictured SMILING SELFIES OF EVIL Nice killer poses for sick pics just 3 days before he used same lorry to kill 84 in Bastille Day terror

It is believed to be South America’s first ISIS-supporting faction.

Brazilian fanatics have been uploading pictures of weapons to Twitter before the start of the Rio Games.

One American ISIS fanatic claims to be in the city making weapons for twisted terror attackers.

On Tuesday, the Brazilian Intelligence Agency (Abin) issued a statement addressing heightened fears of an ISIS plot.

8

8

8

They said: “All threats related to Rio 2016 Games are being thoroughly cleared, in particular those related to terrorism."

"Because of the subject of sensitivity, threats are addressed in an integrated way, the specialized units of confronting terrorism of the three axes responsible for the security of Rio 2016 Games - Intelligence, Public Security and Defence.”

Around 85,000 members of Brazil’s security forces – 47,000 policemen and 38,000 soldiers – will be mobilised to ensure the safety of the thousands of athletes and fans expected to attend the event which runs from August 5 until 21.

8 Brazilian Army Forces soldiers patrol Copacabana beach ahead of the Olympics Credit: Reuters

8 Brazilian soldiers conduct a counter-terrorism drill before the start of the Games Credit: Getty Images

8 85,000 members of Brazil's security forces will be mobilised to ensure safety of athletes Credit: Getty Images

We pay for your stories! Do you have a story for The Sun Online news team? Email us at tips@the-sun.co.uk or call 0207 782 4368