A Derbyshire Constabulary spokesperson said: "We would ask that people avoid speculation and allow for space at this distressing time. At this time we believe the incident to be isolated, and we are not looking for anyone else in connection with their deaths." Photo: David Kessen
Detective Chief Inspector Rob Routledge, who is leading the investigation team, said: "We would really like to hear from anyone who saw or heard anything suspicious in the early hours of Sunday morning, or has any information which they think could help with our inquiries." Photo: David Kessen