Authorities are investigating the discovery of a largely skeletal body found floating in the Negro River. The remains were located alongside a single shoe. Investigators are currently pursuing two active search efforts, one in the Río Negro province and another in Neuquén province, exploring the possibility that the cases are connected. The condition of the remains suggests the body had been in the water for a significant period. The identity of the deceased is currently unknown. Authorities are working to determine the cause of death and establish a timeline. Further details will be released as the investigation progresses.