Two teenagers aged 15 and 16 are reported to have admitted responsibility for the killing of an 11-year-old boy in Rennes, western France, according to the accounts provided. The victim, identified only as Théo, is reported to have been found dead on Sunday afternoon on the banks of the Vilaine River in Rennes. The reports say the case involves allegations that the younger child was accused of stealing inexpensive fishing equipment, worth about £9. The teens are described as admitting the killing after accusations related to the theft. Details of how the investigation proceeds, including any specific charges or the precise circumstances leading to the confrontation, are not included in the material provided. The information also does not include whether the admissions were made during police questioning, in court, or under what conditions. The reports focus on the location of the discovery and the age of those involved, as well as the claimed trigger for the incident.