A Ukrainian drone attack on a Russian missile facility early Wednesday threw up towering fireballs visible from space and thundering detonations that triggered earthquake monitors.
Even by the standards of this incendiary conflict, video showing the blasts north of Moscow was remarkable.
Officials on both sides said it was the result of a large Ukrainian drone attack on Toropets, a town in the Tver region around 230 miles from the Russian capital. Russian state media has previously reported that the military was building an arsenal for storing missiles and other explosives there.
Speaking to reporters early Wednesday, Tver Gov. Igor Rudenya said that all drones in the region were shot down and that there was a fire on the ground as a result of debris from a downed drone. As he spoke, loud explosions could be heard in the background.