That is one eventual first quick assumption by some (mostly nontechnical journalists), but nothing official and confirmed, or you have sources? Otherwise please

That is one eventual first quick assumption by some (mostly nontechnical journalists), but nothing official and confirmed, or you have sources? Otherwise please don't sell this as fact. Knowing the place, it still had heating, so I personally find this also unreasonable.. would only make sense to me if it got to freezing temperatures or below 4°C, but that for sure wasn't the case.. I doubt that place was much colder than at other times, like maybe 2-4 degrees.. but if you have any real details on that this would be welcome.