A video shared on social media on Thursday shows a powerful explosion near the city of Irmino in the Russian-occupied Luhansk region, CNN reports.

The cause of the explosion could not be confirmed, but the video shows a huge flame rising several hundred meters into the air. The video shows several explosions.

A local Telegram channel reported that several explosions had been heard in the area and suggested that an ammunition depot had been hit.

Neither Ukrainian officials nor the Russian-backed Luhansk authorities have commented on the cause of the explosion.

This, despite the fact that the Ukrainian military has made no secret of its intention to strike Russian ammunition depots and other critical military facilities in Luhansk as its forces attempt to liberate the region from Russian occupiers.