Terror group has released hundreds of images and videos of executions

In Syria, 98 women and 76 children were among the 3,207 executed overall

ISIS has executed more than 10,000 people in Iraq and Syria since declaring a 'global caliphate' in June 2014, MailOnline has learned.

The Syrian Observatory for Human Rights (SOHR), which has secret sources inside ISIS territory, said 3,207 have been killed in that war-torn country.

Another 7,700 were executed in Iraq, according to the Iraqi Observatory for Human Rights, which tracks ISIS violations.

The soldiers and civilians who have been beheaded, shot dead, drowned, blown up, stoned to death and thrown off buildings for violating ISIS's twisted laws all contributed to this mammoth death toll.

The figure does not include the thousands more who have been killed in battle and suicide bombings - or the innocent people mown down by ISIS extremists as they tried to flee.

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Executions: The terror group has released hundreds - if not thousands - of propaganda images and footage of civilians and enemy fighters being killed for breaking its strict laws

SOHR said it keeps track of the group's executions after its activists on the ground have verified them from local sources.

It said 1,858 of those executed by ISIS in Syria were civilians. Of these, 98 were women and 76 were children under the age of 18.

This number does not take into account the dozens of young boys who have been forced to carry out suicide bombing missions.

ISIS has also executed 906 Syrian soldiers, 239 rebel fighters and 185 ISIS fighters, SOHR claimed.

Meanwhile, the Iraqi Observatory of Human Rights (IOHR) said 7,700 people have been executed in the country during the same time.

Around 2,100 of these were in the ISIS stronghold of Mosul and 1,900 in the Al-Anbar governate which ISIS largely seized in May.

Another 250 executions took place in Diyala where the group has an established base of operations and 110 in Kirkuk where it has been clashing with Iraqi Peshmerga forces.

IOHR claimed the others came in various other ISIS-held territories throughout the country. It also said around 60 per cent of those executed were soldiers and 40 per cent were civilians.

The terror group has released hundreds - if not thousands - of propaganda images and videos which show people being killed for homosexuality, blasphemy, banditry, murder, abandonment and spying.

Bloodthirsty: An ISIS video released in July showed child executioners executing the captured soldiers in Palmyra's Roman amphitheatre

Syria's bloodiest mass-execution took place in Palmyra, which was seized by ISIS in May.

Eyewitness reported seeing corpses scattered around the historic city's streets after the group executed around 400 mostly women and children.

In July, the group released a sickening video which showed child executioners being forced to shoot dead 25 Syrian regime soldiers inside Palmyra's Roman amphitheatre.

The slaughter of up to 1,700 cadets at Speicher army camp in Tikrit, Iraq, was not included in the overall death toll because it occurred on June 12, 2014, a few weeks before ISIS leader Abu Bakr Al-Baghdadi declared the caliphate.

Neither was the massacre 5,000 Yazidi people in Iraq's Sinjar province last August because they were shot down by ISIS fighters as they tried to escape.

A recently-published report by the International Centre for the Study of Radicalisation and Political Violence (ICSR) shed light on how would-be ISIS supporters want to leave the terror group's brutal regime.

It documented the accounts of 58 ISIS defectors - 51 men and seven women - who claimed that followers have grown tired of the bloody executions, special treatment given to foreigners, and the broken promises of money and glory.