A student at Ecole des Mines on Boulevard Saint-Michel told Le Parisien: “I was in front of the Val de Grâce, I heard a huge boom and I saw a ball of fire 20 or 30m high. And the building collapsed with a huge noise. I smelled gas, but took several minutes to come to my senses.”
Is there another source reporting that?
Edit: this is probably a side effect of federation, but at least four people have confirmed it’s most likely a gas leak.
Tagesschau in German news reported gas explosion as well.
CBS is now reporting that citing the district mayor. Looks like the injury count is up to 16 as well
https://www.cbsnews.com/news/paris-gas-explosion-building-serious-damage-american-academy-language-school/
https://www.cnn.com/2023/06/21/europe/paris-explosion-intl/index.html
Witnesses reported smelling gas before it happened. BBC news report stated.
France Info says gas as well
I mean it was my assumption, just didn’t see it in the article I linked, which is the one I read