Detectives have been given a further 12 hours to question a man over the murder of a pregnant teenager in Newport.
Gwent Police say Nikitta Grender, 19, was stabbed before her flat in Broadmead Park, Liswerry, was set alight to try to disguise the killing.
Carl Whant, 26, of Newport was arrested on suspicion of murder on Wednesday.
Police have also been searching six premises across the city and carrying out tests on two knives found during a search of the estate.
The extension means officers can continue to question Mr Whant until 2200 GMT on Thursday.
Officers said the arrested man is from Newport, but not from the Broadmead Park, Moorland Park, or Pontfaen areas of the city.
Police said they had taken dozens of calls from the public following "strong feeling" in the area.
A large number of floral tributes have also been left outside the murder scene.
Detectives have asked for Broadmead Park, Moorland Park and Pontfaen residents who have CCTV installed at home to contact them.
Earlier this week, a specialist search unit from neighbouring South Wales Police searched streams and culverts around Ms Grender's home.
Police say they are still searching for the weapon used in the attack but two knives were recovered in that search and are undergoing forensic examination, along with a number of other items.
Ms Grender's body was found in the bedroom of the first-floor flat she shared with her boyfriend Ryan Mayes, 18, just before 0800 GMT on Saturday.
The couple had already decorated a room in preparation for the baby girl she was expecting in two weeks, who had been named Kelsey-May.
Police said she had been stabbed twice before the property was set on fire.
Anyone with information is asked to contact the major incident room on 01443 865562, or 01633 838111, or Crimestoppers on 0800 555111.