Derbyshire Police respond to reports of violence in the village of Grassmore, at Henry Street, at about 8:15pm on Sunday. Police say a man and a woman are stabbed and are left fighting for their lives. Following the incident, officers arrest a 17-year-old boy in connection with the stabbing. The reports indicate the case is being investigated by police, and further details are not provided in the supplied accounts. Authorities have not outlined any confirmed motive, relationship between those involved, or the extent of injuries beyond reports that both victims are in critical condition. The incident prompts an active policing response and an ongoing investigation into what led to the stabbing and the circumstances surrounding the arrest. Further information would be expected as enquiries continue, including updates from Derbyshire Police on charges or any additional suspects, if applicable.