Russia,November 13:Isis militant group has released a new video threatening to launch attacks in Russia "very soon".
The ISIS said, "the blood will spill like an ocean".
Syrian troops break siege imposed by ISIS on base since 2013
It was issued on Thursday afternoon in an apparent bid to distract international attention from the significant losses it was suffering on the battlefield in Iraq.
Isis has emerged as the prime suspect in the bombing of a Russian passenger airliner which crashed in Egypt's Sinai Peninsula on 31 October, killing all 224 people on board.
And Russian officials also suspect Isis was planning to bomb the village of Kantyshevo, south-west Russia, in a plot which was uncovered last week by special forces.