Islamic State has executed 116 foreign fighters from their group.

Reports coming in indicate that he Islamic State has in just a couple of months executed at least 116 foreign fighters who wanted to quit jihad and return home, a British-based human rights monitoring group claims.

The Syrian Observatory for Human Rights said the men killed were foreign fighters who had joined the insurgency but were caught trying to leave territory controlled by militants.

But the monitoring group warned numbers were probably underestimates. 'We believe that the real number of people that had been killed by IS is higher than the number documented,' it said on its website.This blood thirsty scums have a penchant for spilling blood even from within themselves,

Those killed for their attempted desertion were among a total of at least 1,878 people executed in six months by the self-styled Islamic State, which enforces an extreme version of religious law on the areas it controls.

The militant group has taken vast parts of Iraq and Syria and declared a caliphate in territory under its control in June. Since then it has fought the Syrian and Iraqi governments, other insurgents and Kurdish forces.

Rami Abdulrahman, the head of the Syrian monitoring group, told Reuters that Islamic State killed at least 1,175 civilians, including eight women and four children.

He said 930 of the civilians were members of the Sheitaat, a Sunni Muslim tribe from eastern Syria which fought Islamic State for control of two oilfields in August