The school attended by three pupils who were found dead in a house in Killamarsh on Sunday has paid tribute to the "significant contributions" they made.
Outwood Academy City in Sheffield has released a statement saying they are "devastated at the loss of 3 of our students; John Paul Bennett, Lacey Bennett and Connie Gent."
They continued: "Our hearts are broken after this weekend's tragic news, and we would like to offer our deepest sympathies and condolences on behalf of everyone at Outwood Academy City to the families of those affected.
"The children had bright futures ahead of them but sadly none of us will get to see this. The school community will remember them fondly."
John Paul and Lacey's bodies were found alongside their mother, Terri Harris on Sunday. It's believed Connie Gent was there for a sleepover with her best friend, Lacey.
Father, Jason Bennett was away in Devon at the time and travelled back to the scene on Monday.
Posting on Facebook he said: "Life will never be the same. My angels."
Derbyshire Police confirmed they had arrested a 31-year-old man from Killamarsh and were not looking for anyone else.
The statement continued: "Our school community is shocked and we are all grieving together. Specialist support is available in school for anyone who needs it and we are thankful to the support we have received from the Police, Sheffield City Council and the wider community.
"We are working closely with Woodhouse West Primary who have been equally as affected by this tragic event and wish to thank them for their support."We will remember John Paul, Lacey and Connie fondly and the significant contributions they made to Outwood Academy City in their time with us. "Our community is hurting right now, but as we often say, we are a family at Outwood Academy City and we will be doing everything that we can to support our students, staff and families during this traumatic time."