The Islamic State has executed five Russian nationals after accusing them of spying within ISIS controlled territory. This is in addition to the beheading of a Russian citizen last week by a man now dubbed "the Chechen Jihadi John." "Yes, this Russian citizen was a Chechen," Ramzan Kadyrov, leader of Chechenya told reporters on December 3. "He was beheaded." A Russian security source said, "The victim is unlikely to have had any relation to our special services." There are an estimated 2,400 Russians fighting for the Islamic State. An Islamic State video threatening to attack Russia was released in mid-November.