A 31-year-old man has been arrested by police investigating the death of 28-year-old Hollie Thompson in west Belfast at the weekend.
The man was also arrested on suspicion of the supply of a Class A controlled drug.
PSNI Major Investigation Team detectives were called to a house in the Greenan area of west Belfast on Sunday morning.
Detective Inspector Michelle Griffin said: “A post mortem examination has been carried out and we are now treating Hollie’s death as murder.
“We have arrested a 31-year-old male on suspicion of murder and being concerned in the supply of a Class A controlled drug.
“He is currently being questioned in the Serious Crime Suite at Musgrave Police Station in Belfast.
“I am appealing to anyone who believes they may have information which could assist detectives with their investigation to contact us at the Major Investigation Team at Ladas Drive Police Station on 101 quoting reference 626 of 11/09/22.”
Alternatively, information can also be provided to the independent charity Crimestoppers on 0800 555 111 which is 100% anonymous and gives people the power to speak up and stop crime.