Twisted ISIS killers have been rigging mass graves of slaughtered innocents with booby trap bombs, The Sun can reveal.

Killers have wired multiple graves of up to 4,000 dead men, women and children with devices in a bid to kill heart-broken relatives desperate to retrieve remains for proper burial.

The gruesome tactic – now being uncovered across liberated ISIS territory – is being dealt with by U.N. de-mining forces funded by vital Dfid [U.K. Department for International Development] aid.

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Former British soldier David Parker, 44, a married father of two, from Kent, U.K., is working with the U.N. Mine Action Service mission currently ridding war-ravaged Iraq of thousands of buried bombs.

He told The Sun fleeing ISIS killers had left devices “literally everywhere” including mass graves left after death state henchmen massacred entire thousands.

Former British soldier David Parker, 44, a married father of two, from Kent, U.K., is working with the U.N. Mine Action Service mission currently ridding war-ravaged Iraq of thousands of buried bombs.
(Dfid)

He said: “Recently, we pushed toward Tal Afar to help clear it.

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“We had a meeting with the mayor and he turned around to us and explained there was a natural sinkhole a couple of kilometers out and ISIS had massacred 4,000 people, and basically put them in a sinkhole.

“Then what they did was booby-trapped the bodies and booby-trapped all the access to it - laid IEDs all around this sinkhole - so people couldn’t reclaim the bodies.

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This story originally appeared in The Sun