Grevesmühlen (dpa / mv) - A 21-year-old was seriously injured in a dispute between two groups in Grevesmühlen in the Northwest Mecklenburg district. A hooded suspect punched the young man in the face around midnight, the police said on Saturday morning. The 21-year-old immediately fell to the ground, convulsed and finally lost consciousness. The man was taken to hospital with suspected traumatic brain injury. The reason for the conflict between the two groups of four and ten people was initially unclear.