Graphic video posted online this week purportedly shows a group of Iraqi soldiers giving ISIS fighters a taste of their own medicine — tossing them off a cliff and pumping their bodies full of bullets as soon as they hit the ground.

The footage shows the broad daylight executions of at least two Islamic State militants, one of whom tries desperately to get away from his captors.

Iraqi officials are reportedly investigating the disturbing, two-minute clip after it was posted on Twitter Wednesday by the local blog, Mosul Eye.

“Executing the ISIS way,” the site tweeted. “Video allegedly shows ISF executing IS fighters, throwing them, then shooting in Mosul.”

The footage seemingly shows an ISIS fighter being held in a building and then dragged by soldiers to a cliff with a drop of at least 30ft. After a brief struggle, he is tossed to the ground below — where the body of a dead jihadist is already waiting.

The soldiers at the top then proceed to fire numerous rounds at the man, striking him several times and presumably killing him. It appears as if the other militant met the same fate.

The video comes amid mounting witness reports of torture and executions in Mosul — committed by Iraqi soldiers — after they managed to re-capture the city from the Islamic State.

While several media outlets have been unable to verify the video, the Human Rights Watch group said Thursday it was authentic and had been filmed in the Old City, along with several other executions.

“These horrific reports of mistreatment and murder have been met by silence from Baghdad, only further fostering the feeling of impunity among armed forces in Mosul,” HRW researcher Belkis Wille told the Guardian.

An Iraqi interior ministry spokesman said Thursday that if the video is, in fact, authentic that those behind the killings would be brought to justice.

“These abusive acts are war crimes and are sabotaging efforts to promote reconciliation in areas retaken from Isis,” explained Lama Fakih, deputy director of the Middle East and North Africa division of HRW.