Nuclear? Mushroom Cloud From Explosion At Military Base Near Achinsk | VK

Mushroom cloud from an ammunition explosion in a military unit near Achinsk

Achinsk is a city in Krasnoyarsk Krai, Russia, located on the right bank of the Chulym River near its intersection with the Trans-Siberian Railway, 184 kilometers west of Krasnoyarsk

via I live in Krasnoyarsk’s Videos | VK

Could this be a nuclear explosion?

Note the single massive explosion, rather than the many explosions and ‘fireworks’ show that usually happens when an ammo dump explodes.

People flee in panic after mushroom cloud explosion