Not only did the reactor get shelled, and not only did I see it live, but I was so amazed at the Russians’ stupidity that I took screenshots: https://imgur.com/a/6T7p9BD
Those gigantic streaks in the lower right are shells from tanks. They certainly aren’t tracers from rifles.
It’s easier to tell in video form. But basically you could see the shells come from the road in the distance (see the bridge?) all the way past the camera. The still frame probably makes it hard to see the scale.
You’re right to press me for details on the “tank” part. I don’t know if the shots are from tanks. But they’re so large that it rules out foot soldiers, so it’s some kind of vehicle-mounted gun.
It’s definitely not the kind of thing you want hitting a nuclear reactor.
Could also be shots from weapons mounted on armored vehicles that aren't strictly speaking tanks. Ex-Soviet mechanized forces (both sides in this fight) field a bewildering array of tracked and wheeled vehicles that look more-or-less tank-like but aren't considered tanks because they are much more lightly armored.
They're typically equipped with heavy weapons that are smaller or less powerful than tank main guns but larger than something that could readily be carried by a soldier or two.
Those gigantic streaks in the lower right are shells from tanks. They certainly aren’t tracers from rifles.