The explosion occurred in a warehouse containing pyrotechnic equipment, state news agency TASS reported.
EXPLANATION FROM THE MAYOR
Twenty-three people were hospitalized after the explosion, according to the mayor of Sergiev Posad.
While a large column of smoke was seen in the images shared on social media, it was noticed that the windows of the buildings exploded.
It was learned that in the factory where the explosion took place, industrial and health equipment was produced for the Russian security forces.