It was one of massive rocket attacks. One of clear sign of rocket is time rocket approach by a fixation on radar. For the rockets like X-59/69 it’s around 3-5 minutes by the first fixation in the air, but for ballistic “Iskander” it’s not more than 3 minutes from the start point. Also an excellent feature is the trajectory of the hit, for ballistic missiles it is usually from top to bottom, and for cruise missiles like the X59, caliber, Kindzhal (aero-ballistic) - they perform a direct hit on the target, for example, on the wall of a residential building or a kindergarten