A fuel depot exploded in separatist areas of eastern Ukraine, according to Moscow-backed insurgents on Saturday.
The separatists announced on Saturday night in the Lugansk region only 200 tons of the diesel had ignited.
The reasons for the explosion in the city of Rovenki were initially unclear, and the information could not be independently verified.
According to the separatists, there were casualties.
A published video on telegram showed how the flames rose to meters high and the night sky was brightly lit.