The police found a seriously injured man in Kassel on Tuesday night in front of a school site.
The officials said they had previously been called to a multi-person brawl.
According to the information, the emergency services found the younger man with several cuts in the area of the school.
Kassel - Based on the initial investigations, the police assume that the serious injuries were inflicted on him in the course of a dispute with an unknown sharp object.
The alleged perpetrators are being searched.
The police are investigating suspected killing.
The investigations into the identity of the still unknown victim continued, according to the information.
According to the current state of knowledge, it should not be in mortal danger.
The police are looking for witnesses.
dpa