ISIS released a video on Sunday urging those loyal to the terrorist group to commit acts of terror in Russia.
"Listen Putin, we will come to Russia and will kill you at your homes ... Oh Brothers, carry out jihad and kill and fight them," said a masked man, seen in the video driving a car in the desert while yelling and wagging his finger.
The video (which includes subtitles) shows footage of armed men attacking armored vehicles and tents and collecting arms in the desert. "Breaking into a barrack of the Rejectionist military on the international road south Akashat," the subtitles read.
It was not immediately possible to independently verify the video, but the link to the footage was published on a Telegram messaging account used by ISIS.
While it is yet clear why Russia has become an apparent target for ISIS, Russia and the US have been talking about boosting military and intelligence cooperation against ISIS and al-Qaeda in Syria.
There has been a string of deadly attacks claimed by ISIS in Europe over the past few weeks: just last week, assailants loyal to ISIS forced an elderly Catholic priest in a French church to his knees before slitting his throat. Since the mass killing in Nice on July 14, there have been four incidents in Germany, including the most recent suicide bombing at a concert in Ansbach.