The video begins with TV-style interviews with both men, who claim they are spies against the militant group and are working in Syria and Turkey. They also confess to attempting to infiltrate the jihadi group.

MOSCOW, January 13 (Sputnik) — A new shocking video of an execution of two alleged Russian spies by the Islamic State militant group was posted online Tuesday.

The seven-and-a-half-minute long video was released by the Islamic State’s production wing, al–Hayat. It begins with TV-style interviews with both men, who say they are spies against the militant group and are working in Syria and Turkey. They also confess to attempting to infiltrate the jihadi group.

The men speak Russian in the interviews and can be identified by their names – Jambulat Mamaev and Sergei Ashimov.

One man says he was tasked with gathering intelligence information on one of the IS leaders and stealing sensitive information. The other confesses he had been sent to assassinate a senior IS commander. Meanwhile, the name of the commander is edited from the video.

After the interview scene, an IS fighter with a Kalashnikov rifle appears in the video for the final scene, standing behind the two kneeling hostages. He delivers a speech against "disbelievers". Standing next to him is a young boy who is no more than nine or ten years old.

The adult militant quotes the Koran and adds in Russian: "Allah has gifted the Islamic State's security agency with the apprehension of these two spies… By Allah's grace, they are now in the custody of the lion cubs of the Caliphate."

Then, the young boy shoots the both men in the back of the head.

The authenticity of the video cannot be confirmed yet.

Russia's Federal Security Service (FSB) has not commented on the video. The FSB is Russia's best known security agency; however, the organization does not operate outside of the Russian Federation and its involvement in Syria and Iraq is out of the question.

The Russian embassy in Damascus also declined to comment on the situation.

IS has executed a great number of people in territory seized on both sides of the Iraq-Syria border, including some American and European journalists and aid workers.