(VOVworld) - The head of the Federal Security Service of the Russian Federation (FSB) says the agency has managed to identify groups responsible for the October crash of a Russian passenger jet in Egypt.

Alexander Bortnikov said on Thursday that Russia has determined groups linked to this incident but refused to provide more details.

One week ago, Russia’s “Kommersant” newspaper quoted the FSB as saying that an explosive device planted underneath a passenger seat on the rear right side could have brought down the Russian airliner.