On a cool night in April, a Russian warplane dropped a bomb on to a busy city, ripping up the road and sending debris flying across the highway. No one was killed, but the explosion was so powerful that it left a 20-metre crater in the ground and blew a parked car on to the roof of a nearby shop.
It’s an incident that in Ukraine is now commonplace. But the airstrike on 21 April hit a Russian city.
