These pictures, taken on Sunday, show the extent of the police investigation.
1. Killamarsh tragedy
Police were called to concerns for safety of those at a house on Chandos Crescent at around 7.25am on Sunday. Photo: David Kessen
2. Killamarsh tragedy
At around 1.30pm, police made the public aware that they were dealing with a ‘serious incident’ in the town. Photo: David Kessen
3. Killamarsh tragedy
On Sunday night, police confirmed that four people were sadly found dead at the house. Their identities have not yet been made public by officials. Photo: David Kessen
4. Killamarsh tragedy
Officers also confirmed that a man had been arrested and that they had started a murder investigation. Photo: David Kessen