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Islamic State has revealed its chilling new bomb-dropping drone - copied off the US alternative - in a sick propaganda ‘trailer’ released online.

The clip taken in the Iraqi city of Mosul shows the jihadis using the weapon against US-backed forces for the first time.

Ground troops can be seen fighting against ISIS in the video with other scenes including a suicide operation and the drone dropping two bombs on troops.

The weapon appears to be based on the deadly MQ-9 ‘predator’ aircraft which is used by the American military and manufactured by California-based General Atomics Aeronautical Systems.

(Image: @RamiAILoIah / Twitter) (Image: @RamiAILoIah / Twitter) (Image: @RamiAILoIah / Twitter)

ISIS propaganda has previously shown militants using drones for aerial reconnaissance but it is the first time the group has used one of the unmanned aerial vehicles for attack.

It comes just hours after the group's brutal leader Abu Bakr al-Baghdadi was reportedly injured in an air strike.

The hit by the US-led coalition took place in Al-Ba'aj in northern Iraq.

(Image: @RamiAILoIah / Twitter) (Image: @RamiAILoIah / Twitter) (Image: @RamiAILoIah / Twitter)

The town is one of the few remaining large ISIS bastions in Iraq after Mosul and Tal Afar.

The incident, which has yet to be independently verified, would come as a huge blow to the jihadi group, which is being beaten back by allied forces across the Middle East.

(Image: @RamiAILoIah / Twitter)

Last month the US government increased the bounty for ISIS leader Abu Bakr al-Baghdadi from $10 million to $25 million.

The reward will be handed to anyone who comes forward with information on the whereabouts of the terrorist that leads to his capture or death.

(Image: Getty)

A Facebook and Twitter account belonging to the US Central Command confirmed the reward had been increased.

al-Baghdadi is now worth the same amount of money (£20 million) as the leader of al-Qaeda, Ayman al-Zawahiri.

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Iraq-born al-Baghdadi sleeps undergound in a suicide vest and is becoming increasingly paranoid, ordering executions whilst under attack from Iraqi and Peshmerga troops .

Chilling details of Baghdadi’s movements emerged as Iraqi and Kurdish sources confirmed officers were getting leaks from within Mosul from an undercover agent.