Too many workers smoking and drinking Vodka on the job.
Unauthorized space heater in break room + over-fermented cabbage cause mishap.
Spent a half hour at another site last night watching a LOOOONG video discussion about this “accident.” Cell phone footage was shown from 10 and 20 miles distance by Russians from home. The explosion itself was large and bright. After the initial explosion which was not heard, one could hear the fuel burning off, even from 20 miles away. The 2 men discussing the incident proposed it was a system accident, a human accident, result of poor practices and maintenance, sabotage, or Ukranians. These Ukraine supporters were leaning toward result of poor practices and maintenance.
One pointed out he had watched US rocket tests, the fire pointed down and was never performed at midnight when people should be sleeping. This night burn lit up the entire sky. They were looking forward to daylight satellite photos for all to see. They also showed before pictures of the factory area in question. They suggested that since there were no State reports of nuclear danger, probably these were just the nuclear shells with the nukes stored elsewhere, not in a populated place, for final loading.