Pictured: seven year old girl who died after sustaining serious injuries on a playing field
A 15-year-old was arrested after her death
A seven-year-old girl who died after she was found seriously injured on a playing field has been named by police as Katie Rough. She was found down a track with life-threatening injuries on Monday after police were called to an address in the Woodthorpe area of the city.
Katie was taken to hospital but died a short time later, North Yorkshire Police said.
A 15-year-old girl was arrested and remains in police custody.
Witnesses earlier described how Katie's mother, named locally as Alison Rough, was seen crying on her knees in the street and pleading for help after her daughter was injured.
Residents living in Alness Drive said Mrs Rough asked them to call an ambulance for Katie - who was described in tributes as "darling princess" - saying "I think she's killed her".
Rob McCartney, 50, said he saw the young girl lying in the field near the quiet cul-de-sac.
He said: "The mother came running up the street shouting for help and saying 'Get an ambulance'.
"I put my shoes on, went up the side of the house. I could see a young girl lying in the field, police were already attending to her."
Mr McCartney added: "(The mother) was back and forth, obviously very, very distraught and who I think was the father turned up.
"I spoke to her later, asked if she was okay and she said 'No, no, she's my little girl'.
"She said 'I think she's killed her'."
A woman living in a house by a track leading to the playing field said: "The mother was on her knees in the middle of the road, crying and saying things.
"It was quite distressing."
Neighbours said children often used the playing field during the summer and it was regularly visited by dog walkers.
The area was cordoned off on Tuesday while forensic officers examined the scene.
A white tent could be seen on the playing field.
Mourners arrived throughout the day to lay flowers in the street.
One couple, believed to be the young girl's grandparents, left a bouquet with a card, which read: "Night, night my darling princess Katie, love Nana and Grandad."
At the family's home, just less than a mile away from the scene, two police vans were parked outside and an officer was seen entering and leaving the property carrying equipment.
On Tuesday evening, police appealed for anyone who may have seen the two girls in the area of Morrell Court, Bellhouse Way, Osprey Close and Alness Drive between 3pm and 5pm on Monday to get in touch.
A force spokesman said: "The investigation into Katie's death is ongoing.
"Katie's family are devastated by this tragic event and have asked for their privacy to be respected at this extremely distressing time.
"Police are appealing for witnesses who were in the area of Morrell Court, Bellhouse Way, Osprey Close and Alness Drive between 3pm and 5pm on Monday 9 January, and may have seen two girls, one aged 15 years old and the other seven years old, to get in touch.
"If you have any information that could assist the investigation please dial 101, select option one, speak to the Force Control Room and ask to be put through to the Cleveland and North Yorkshire Major Investigation Team.
"Please use reference number 12170004685 when passing on any information."