Russian missile attack on the group of the Ukrainian infantry

Near Donetsk! At 53 seconds, a missile(BM-21 Grad MLRS)hits a group of Ukrainian infantry. They say that unguided rockets are not accurate! Reconnaissance drone revealed the movement of a unit of the Armed Forces of Ukraine at the front in the Maryinka area, and the target was promptly hit by rocket artillery.
https://bs.wikipedia.org/wiki/BM-21_Grad