A 42-year-old woman arrested by police investigating the murder of a pregnant woman in Donaghadee, County Down, has been released unconditionally by police.
Sarah Montgomery, 27, was the mother of two young girls and expecting her third child when she was pronounced dead at her Elmfield Walk home on Saturday afternoon.
The 42-year-old woman was arrested in Belfast on Monday on suspicion of assisting an offender.
A 28-year-old man who was detained on suspicion of murder remains in police custody.
On Monday, police were granted a 36-hour extension to question the 28-year-old man.
The police were first alerted to an unconscious and seriously injured woman inside the Elmfield Walk house on Saturday afternoon. Ms Montgomery was then treated by emergency services but pronounced dead at the scene.
The Police Service of Northern Ireland (PSNI) described the case as “deeply tragic” and said it would “do everything in our power to bring anyone involved in this senseless murder to justice”.
On Monday, detectives issued a public appeal for information about a specific vehicle in east Belfast as part of their investigation.
They are seeking sightings of a yellow Jeep Avenger in the Airport Road area of the Belfast Harbour Estate on Friday afternoon.
“We are working at pace to determine the circumstances of Sarah’s tragic murder and need help from people in the Donaghadee and Belfast areas,” said Det Ch Insp Tom Phillips.
“This is an incredibly tragic case which has devastated Sarah’s family and friends, and leaves two small children without their beloved mum.”
He explained that officers want to hear from witnesses who may have seen anything suspicious in Elmfield Walk, Donaghadee, between 13:20 and 14:20 BST on Friday.
They are also appealing for sightings of the yellow Jeep between 15:30 and 16:15 later that same day.
