ISIS savages execute four ‘spies’ on a crucifix and throw ‘gay man’ from rooftop as they face oblivion in Mosul and Raqqa

ISIS warlords have posted a ‘business as usual’ sign in the most sickening way – crucifying four “spies" and throwing a gay man hundreds of feet to his death.

Two men also had their hands sliced off for robbery. Children were in the crowd watching as the vile punishments were meted out.

The group is losing its grip on the stronghold of Mosul in Iraq - but in a bid to show that it is still in control of the large swathes of the country, its media wing released pictures of a string of brutal punishments in Tal Afar – a city to the west of Mosul.

Disturbing pictures show a man being readied to be thrown from giant grain silos on the edge of the city.

It comes as the United Nations revealed ISIS has slaughtered 40 civilians for treason.

Under strict Sharia law the punishment for homosexuality is to be pushed from the area’s tallest building and then the broken body stoned.

Another set of shocking pictures show four men lashed to makeshift crosses before being shot in the head with pistols as crowds of locals – including kids – look on.

A cleric read out a charge sheet before the execution and branded them spies.

And despite their forces being on the run in Mosul, ISIS are flooding social media with pictures which appear to show that life is carrying on as normal.

Photographs show cars and people on the streets of their Iraqi stronghold and traders opening for business.

Other bizarre snaps show white-coated men at work in a modern-looking dental surgery, again said to be in the northern city.

But on the ground Iraqi and Kurdish forces are tightening their grip on the area, where around 1.5 million citizens are cowering in their homes.

And dissident groups have revealed mass arrests and executions are rife.

Anti-ISIS organisation Mosul Eye has revealed on Twitter that IS fighters have begun rounding up men who used to be part of the Iraqi security forces.

In a series of Tweets the group said: “ISIL (another name for ISIS) forced all young men to leave their homes and to gather them at the mosques at Al-Karama and Al-Khadraa apartments.

“Then ISIL moved those who gathered at Al-Khadraa apartments about 6:00 AM.

“It is believed that ISIL is detaining all the former members of the security forces.

“Some of them returned home, and some stayed. We believe ISIL had executed them.”

And the group revealed that Western Jihadists – lured to the Middle East to fight a so-called holy war – were now trying to flee the war zone.

Mosul Eye added: “A foreign European fighter shaved his beard and his head, is seen on the Eastern bank at Al-Kafaat Al-Thaniya neighborhood.”

The group said the Iraqi forces had taken control of the city’s TV station.

And the group posted: "ISIL's days are numbered, whether its weeks or months, they are numbered!"

"Yes ... ISIL, your days are numbered, and soon we will get rid of you.

"And Mosul will get its colours back, all the colours you taken away .. will come back, for a never ending spring."