Yesterday's messages in all media about the unsuccessful launch of anti-aircraft missiles are false. There is an opinion that we are talking about the launch of the Topol-E missile, for experimental launches from Kapustin Yar on the targets of the Sary-Shagan test site in Kazakhstan, used for testing new combat equipment, and also in the interests of the missile defense program.
At least several authoritative sources report that the launch was made from the 107th site, where the C-350 was never placed, it is also noted that the video shows that a much larger amount of fuel exploded than from known missiles, even from C -300/400, while the C-350 has a smaller rocket. An unsuccessful launch suffered a more serious rocket, since this was indicated by powerful explosions from the fall of parts of the test object to the ground. The 107th site of the Kapustin Yar landfill is used for trans-atmospheric launches and has its own launch facility, which is clearly visible in the satellite image above.
On the glavsu supplement, there are reasons to think that Topol is most likely. Now removed from the database W58 regularly run for research purposes.
In this case, there was a rupture of solid propellant rocket motors (solid propellant rocket engine). The most likely cause of the incident is the cracking of the charge TRT (solid rocket fuel). This phenomenon is most likely in old rockets.
Zur "9M96" also fell, but it looked much smaller.