What happened to the newborn girl found dead in Sheffield?

Newborn baby girl found dead at a house in the Wincobank area of Sheffield died from stab wounds, South Yorkshire Police have confirmed, and a murder investigation was launched [2, 4]. Officers were called to a property on Holywell Heights, and seven people have since been questioned on suspicion of murder, with neighbours reportedly saying the family had left the property before police arrived [3]. Police have not released further details such as a timeline or post-mortem results [1].