The explosions in Toropets, in the Tver region, were so intense that they were picked up by NASA satellites and earthquake monitors.

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 made for remarkable footage.

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.