Jihadists have been circulating three new posters, one depicting a suicide bomber standing in front of a burning Big Ben.

It is captioned with the warnings “London attacks coming soon” and “just terror”, also showing a burning Union Jack.

The threat to London also includes a quote from the Koran’s At-Tawbah 5 – or the “Sword Verse”.

It reads:

“And when the sacred months have passed, then kill the polytheists wherever you find them and capture them and besiege them and sit in wait for them at every place of ambush.”

The verse carefully excludes teachings urging them to “protect” unbelievers and “grant protection till he hears the words of God” as ISIS pervert the teachings of Islam.

Security group Terrorism Research and Analysis Consortium (TRAC) shared the new wave of propaganda on Twitter.

It cites them as being created by the Ash-Shaff Media Foundation – a propaganda wing of ISIS.

Another poster released shows a masked terrorist strapped with a bomb-wielding a knife above New York.

It urges lone wolves to “fight them in your country” – along often used in jihadi propaganda – and also includes the phrase “just terror”.

The final poster features a lengthy verse in front of an ISIS flag.

It also includes a picture of a masked fighter, and directly claims it is from “Islamic State”.

The poster reads: ‘Remember O you who have believed, whoever of you should revert from his religion

“Allah will bring forth in place of them a people he will love and who will love him… who are humble toward the believers, powerful against the disbelievers… they strive in the cause of Allah and do not fear the blame of a critic.

“That is the favour of Allah, he bestows it upon whom he wills.

“And Allah is all-encompassing and knowing.”

Home secretary Sajid Javid stated this week that 19 major terrorist attacks have been foiled in Britain.

He said 14 were Islamist and the other five were from “right-wing ideologists”.

Javid warned “we are all potential victims with terrorist attacks happening all over the world.

He added: “Despite this impressive work, the tempo of terrorist activity is increasing.”

This new poster campaign and the recent video from the leader of ISIS who was mistakingly thought to have been killed sees the defeated group in Syria trying to regroup and concentrate attacks encouraging and utilising their network of jihadists placed around the globe.

Just this week in Birmingham two men who planned a trip to Syria so that they could fight for Islamic State have each been jailed for 14 years.

Safwaan Mansur and Hanzalah Patel attempted to evade surveillance but were detained in Turkey before they could cross the border.

Patel’s family had raised the alarm, contacting the police after becoming concerned about his son’s whereabouts.

Safwaan Mansur and Hanzalah Patel attempted to evade surveillance but were detained in Turkey before they could cross the border.

The judge said there were conversations about pledging allegiance to Isis while there was evidence to show Patel’s “interest in fighting, beheading and armoured cars.”

He went on;

“You both had access to extremist material and you were both in contact for some time with others by telegram who held extremist views such as your own.

“Your intention was to play a significant role in the fighting as a foot soldier or a suicide bomber.”

Following sentencing, acting head of the West Midlands Counter Terrorism Unit Chief Superintendent Shaun Edwards said: “If anyone is concerned that a friend or family member is thinking of travelling to Syria, it is very important that they tell us as soon as possible.