ISIS hostages killed by explosive necklaces and blown up by rocket launchers in sick footage

             

 The Islamic State has released a series of sickening execution videos purportedly showing rebels being slaughtered by rocket launchers, explosive necklaces and blown up at sea.  

The terror group has infiltrated Yemen, which is embroiled in its own civil war and where Houthi rebels are fighting the government and al-Qaeda in the Arabian Peninsula (AQAP).

The footage opens with scenes of warfare in Yemen before six alleged Houthi rebels in orange jumpsuits are forced to march to a rocky hillside.

They are then fired at by what is apparently a Katyusha rocket launcher, detonated remotely, and blowing them to pieces.

Another group of Houthi rebels were seen being led onto a boat in single file and wearing shackles before it is pushed into the sea.

Moments later the boat is obliterated remotely, killing the six men on board.

In one of the videos four rebels are seen wearing mortar shells tied around their necks like a piece of jewellery before they are blown up.

                    

Helpless: Another group of men in jumpsuits sit on a rocky hillside before being obliterated by a rocket launcher

A fourth propaganda video shows nine men with their hands tied behind their backs being taken to a remote outpost in Yemen before they are beheaded.
The terrorist organisation, which has territory in Syria , Iraq and Libya, has spread to Yemen in recent months as the country fights its brutal ongoing sectarian war.
ISIS claimed responsibility for synchronised attacks at checkpoints operated by troops loyal to Yemen's internally recognised government which killed 15, last month.
The Houthis - a Sunni Muslim group battling AQAP - are seen as 'apostates' or those who have abandoned Islam by ISIS fighters.

                   

Cruel: Another group of rebels were marched onto a boat which was pushed out to sea

                   

Obliterated: The boat was then blown up remotely, apparently by another rocket launcher

This video is believed to be the third released by the extremist group in the first few days of December.
Yesterday a sickening video showing children hunting then shooting Islamic State prisoners in a twisted game of hide-and-seek organised by terrorists was released.
Read more: Revealed: ISIS executioner 'Jihad Vlad' is 'son of Christian woman' and came from 'normal' family
On Wednesday an alleged Chechen spy was beheaded by a Russian in a video in Syria.
It comes as ISIS claimed responsibility for the San Bernardino shootings in California on Wednesday, when a married couple went on a killing spree, killing 14 people.

                    

Sickening: The propaganda video shows a rocket launcher preparing to kill rebels in a desert location

                   

Explosion: A huge burst of flames is seen in the footage which purports to show the murder of several Yemen rebels