This is stated in the press service of the police on Facebook.
As law enforcement agencies found, there was a conflict between a group of men. In particular, one of them took out an object that looked like a grenade and threw aside opponents. As a result, there was a strong explosion.
At present, the victims were taken to a medical institution with bodily injuries. In addition, a check from a grenade and splinters was seized from the scene of the event.
Now all the circumstances of the incident are being clarified.
Recall, as previously reported, "URA-Inform, in the Kharkov region in the courtyard of a private house there was an explosion. The police assume that the grenade exploded here. Fortunately, none of the people were hurt.