https://www.nbcnews.com/news/world/explosion-mechanical-plant-moscow-region-sergiev-posad-rcna98944
The incident comes amid an unprecedented number of drone attacks on the Russian capital and the surrounding region in recent weeks that the Kremlin has blamed on Ukraine.
This is the best summary I could come up with:
A massive explosion rocked a factory in the Moscow region Wednesday, injuring dozens and blowing out windows in nearby buildings, local officials said.
At least 56 people were hurt with six in intensive care as a result of the blast at the Zagorsk optical-mechanical plant in the city of Sergiev Posad, northeast of the Russian capital, the district administration said in a post on Telegram.
One taken by nearby residents and posted to social media shows the moment a huge, fiery blast takes place behind a parking lot.
Russia's federal investigative agency said it launched a criminal probe into the incident, citing a "violation of industrial safety requirements for hazardous production facilities," but said it was trying to establish the cause of the blast.
The explosion comes amid an unprecedented number of drone attacks on the Russian capital and the surrounding region that the Kremlin has blamed on Ukraine.
Early Wednesday, Moscow Mayor Sergei Sobyanin reported that two drones were shot down by air defense systems over the capital.
I'm a bot and I'm open source!
Northeast of Moscow, apparently. Assuming it's a Ukrainian drone and not a partisan attack, that's impressive that they can target things further away than moscow without getting shot down
"Russian state media reported that the plant makes optical devices for law enforcement agencies and civilian use."
From the article