It is reported by Censor.NET citing the Facebook post of the activist.
He writes: "If not for the precise work of the 93 brigade commanders today, tomorrow might have been one more dark day. Near Netailovo, three Grad systems of the separatists were going to the firing position. The target was most probably the brigade camp. They were detected and stopped by tank fire (the distance is large, so it was more of a psychological effect). Upon detection the Grads turned and tried to escape. In the end they were hit by two 20 shell salvos. Among the breaks you could clearly see two ammo explosions. It is not yet confirmed but I think at least 2 systems were lost by the separatists. A third one is likely damaged."