A man has been arrested by police investigating the murder of a 25-year-old woman in Northern Ireland.
Lisa Dorrian was last seen alive on the night of 27 February 2005 in Co Down.
She disappeared after attending a party at Ballyhalbert Caravan Park.
Despite extensive searches in multiple locations and campaigning by her family, Ms Dorrian’s body has never been found.
The Police Service of Northern Ireland believes that she was murdered that night or in the early hours of the following morning.
The force’s Major Investigation Team, which is investigating Ms Dorrian’s murder, has arrested a 68-year-old man.
He is being detained on suspicion of murder, assisting offenders, withholding information and preventing a lawful and decent burial.
Earlier this year, the PSNI released CCTV footage of Ms Dorrian’s last-known movements in a bid to jog memories on the 20th anniversary of her disappearance.
Additional reporting PA