Alexander Bortnikov, the head of Russia's Federal Security Service, said on Dec. 24 Russia had identified groups behind the explosion of a Russian plane in Egypt, which killed all 224 passengers on board in October, local news agencies reported.
Reuters: Russia’s security chief says identified groups behind plane explosion in Egypt
A relatives reacts while reading his mobile and waiting at Pulkovo international airport outside St. Petersburg, after a Russian plane with 224 people on board crashed in a mountainous part of Egypt's Sinai Peninsula on Oct. 31, 2015.
