Detectives investigating the murder of a 19-year-old mother-to-be in a flat fire in Newport say she was stabbed.
The body of Nikitta Grender, who was eight months pregnant, was found at the flat in Broadmead Park, Liswerry, by fire crews on Saturday.
Police have set up a major incident team and are conducting house-to-house inquiries in the area.
Det Supt Geoff Ronayne called it a "horrific crime where two innocent lives have been lost".
He said: "Nikitta was two weeks away from giving birth to a baby girl.
"This is particularly callous and something we very rarely see. When Nikitta's family should have been looking forward to the birth of her baby they are now absolutely grief stricken."
Ms Grender's body was recovered by crews using breathing apparatus and thermal imaging cameras after a fire in the bedroom of the flat just before 0800 GMT on Saturday.
Police said a post mortem examination showed that Ms Grender has been stabbed.
Detectives are searching for a knife which has not yet been found but this was a priority for search teams, he said.
Ms Grender's pet dog also died in the fire.
Fifty officers are working on the investigation and they will be looking at CCTV as part of the inqury.
Specially trained officers are supporting the family of the teenager.
Det Supt Ronayne, who is leading the murder investigation, appealed for information from the public.