Russian forces bombed the Ukrainian Antonov Aircraft Factory in the Ukrainian capital, Kyiv, according to the city administration.
The city administration said via Telegram that rescue work was underway at the site, but it was not immediately clear whether there were any injuries.
The Strana.news news portal published photos and videos showing a huge cloud of smoke, but no further details were available.
The company manufactures cargo and passenger aircraft. The factory is located in the northwest of Kyiv.