The Russian Emergency Ministry said that 170 firefighters battled the enormous fire, which was started around 6 a.m. local time. Dmytro Kuleba, Ukraine’s foreign minister, said he could not confirm or deny reports of Ukraine’s involvement in the strike, as he did not have military information.

https://ca.yahoo.com/news/moscow-accuses-ukraine-of-conducting-airstrike-inside-russia-132343782.html