The dugout, with the soldiers hiding there, was blown away by a direct hit from an anti-tank missile.

An armored vehicle (presumably an infantry fighting vehicle) came under fire and was disabled. After that, a group of servicemen tried to take cover in one of the dugouts located a few hundred meters away, however, the decision turned out to be futile - a missile accurately fired from an anti-tank missile system literally scattered the shelter within a radius of several tens of meters.

In the presented video footage taken from an unmanned aerial vehicle, you can see how a group of servicemen is trying to hide in a dugout, making their way into it in small groups and shooting back from the enemy. Nevertheless, as soon as the servicemen reached the shelter and began to defend themselves, an anti-tank guided missile flew into one of the loopholes of the dugout, literally tearing apart the field fortification, depriving the servicemen of the chance to hide there.

Judging by how severely damaged the field shelter was, it was not properly fortified, as in the vast majority of cases, such shelters are able to survive several such hits without serious consequences.