A murder investigation has been launched following the discovery of suspected human remains during searches for a missing woman in Ballymena.
Chloe Mitchell was last seen in the County Antrim town between the night of 2 June and the early hours of 3 June.
A huge search operation has been taking place in an attempt to find the 21-year-old.
On Sunday night, Det Ch Insp Richard Millar said police now had reason to believe she had been murdered.
“Our thoughts this evening are very much with Chloe’s family and we have specialist officers providing them with support at this heart-breaking time,” he said.
He added that the remains had not yet been formally identified.
Two men, aged 26 and 34, who were earlier arrested over her disappearance remain in police custody.
The 34-year-old was arrested in Ballymena on Saturday, while the 26-year-old was arrested in Lurgan in County Armagh on Thursday.
On Saturday afternoon, police were granted a further 36 hours to question the 26-year-old.
Forensic teams were seen entering a house in James Street in Ballymena on Sunday evening.
The property had been sealed off by police for a number of days.
At that stage, police had described her as a “high-risk missing person”.
A prayer vigil for Ms Mitchell was held at Harryville Presbyterian Church on Sunday evening.
On Saturday, police said they were increasingly concerned for the young woman’s safety and renewed their appeal for information.
Extensive searches had been carried out to try to find Ms Mitchell.
On Sunday evening the Community Rescue Service (CRS) said it was no longer searching for her, having completed all search areas as requested.
In a statement it added: “The CRS would like to thank the people of Ballymena, those who live and work in the Harryville area and especially Chloe’s family and friends for their exceptional support during our operations.”
‘Saddened and disturbed’
The MP for the area, Ian Paisley, said he was “deeply saddened and disturbed”.
“This is heartbreaking news for Chloe’s family and friends and will shadow the town of Ballymena with sadness,” he said.
“The family have stated they are broken. No one can understand just how deep that break is.”
Mr Paisley said he understood the police would hold a press conference on Monday.