Glider
Captain
Some better shots:
View: https://twitter.com/LXSummer1/status/1689188992560795648
View: https://twitter.com/NOELreports/status/1689185545786679296
Videos taken at the scene show a few artillery shells (looks like 122mm) lying on the ground several hundred meters from the explosion. It's possible a charges storage warehouse, or shell assembly/filling plant went kaboom.
Personally I prefer this excuse / explanation
According to Andrei Vorobyov, the governor of the region surrounding the Russian capital, the blast occurred at a warehouse storing fireworks, though it was on the grounds of the plant
Do they seriously expect anyone to believe them?