Two men remain in custody today over the disappearance of 21-year-old Chloe Mitchell in Ballymena, Co Antrim.
The first man, aged 26, was arrested on Thursday while the second man, aged 34, was detained yesterday morning.
On Saturday officers were granted a 36-hour extension to the first man's detention period.
Ms Mitchell was last seen on CCTV in the early hours of June 3rd in Ballymena town centre. She was last seen wearing a green and black jacket, white t-shirt, leggings and Nike trainers.
A major PSNI search operation continued in the town on Saturday, treating Ms Mitchell as “a high-risk missing person”.
A flat in the James Street area of Ballymena examined by officers remained cordoned off.
Superintendent Gillian Kearney said PSNI is continuing to appeal for witnesses to come forward with any information on Ms Mitchell’s disappearance.
"We are becoming increasingly concerned about Chloe’s safety,” she said. “It is completely out of character for her to not be in contact with her family, who are being supported by specialist officers during this worrying time.
“I am appealing directly to Chloe to make contact with the police, family or friends so that we know you are safe and well.
Information can be provided to Crimestoppers anonymously on 0800 555 111 or online at www.crimestoppers-uk.org
