Western media have said the presence on board of the victim airliner bomb timer.
Information about this at the moment is unfounded, however, given that at present the version of a terrorist act looks very plausible, it should not be ruled out, at least until new circumstances appear that take into account or reject this version.
Experts have already noted a number of features made by the theory in the case of a crash passenger airliner in particular, pointing to the fact that the presence of the timer was not necessarily because the bomb could be activated during landing at a Russian airport.
According to Avia.pro, an investigation into the Airbus A321 crash is ongoing.