Unnamed source in RF government said yesterday, after meeting with prime-minister at which it was mentioned that flights suspension to Egypt will not be short one (literally "possible be for years" and "for other destinations too"), that "disaster was a result of Egyptian secret services betrayal" and that "unauthorized personal was allowed to the plane".
Take it with great pinch of salt, but it was originated from
Kommersant, not any yellow paper...
PS: original article a bit more sober than this short squeeze but it's like they begin to cite it in the media... Go figure.