Police in the North of have been given extra time to question a man and woman in connection with the suspected murder of Lisa Dorrian.
25-year-old Lisa went missing after attending a party at a caravan site in Ballyhalbert, Co Down on February 29th 2005.
A murder investigation was launched just over a week later.
Her body has never been recovered.
A 49-year-old man and 34-year-old woman were arrested on Friday on suspicion of murder.
Police have been granted an additional 12 hours to question them.
Detectives from the PSNI's Major Investigation Tea investigating the murder of Lisa Dorrian have been granted an additional 12 hours to question a 49 year old man and a 34 year old woman on suspicion of murder. Both remain in police custody at this time.
— Police Service NI (@PoliceServiceNI) April 6, 2019
A large scale search was launched earlier this week at the caravan park where Lisa was last seen, as well as a disused airfield behind it.
Detective Superintendent Jason Murphy, who is leading the investigation, insisted the PSNI is still focused on bringing those who killed Lisa to justice.
He said: "Fourteen years have now passed, but our resolve has not diminished.
"It is important that we bring the Dorrian family the answers that any grieving family deserves."