Gardaí investigating the murder of Annie McCarrick, who went missing in Dublin over 32 years ago, have begun searching for human remains.
A cadaver dog has been brought in to search a house in Clondalkin which has been sealed off for the past two days.
A 62-year-old man arrested on suspicion of the murder of the 26-year-old American woman is still being questioned at a garda station in Dublin.
Originally from New York, Annie McCarrick visited Ireland on a school trip as a teenager.
Her parents said that she had fallen in love with the country and its way of life.
In the late 1980s, she completed her third-level studies at St Patrick’s College in Drumcondra and St Patrick’s College in Maynooth before returning to New York to study at Stony Brook University.
She moved to Ireland permanently in January 1993 and lived at St Cathryn’s Court in Sandymount in Dublin with two other tenants.
On 26 March 1993, Ms McCarrick spoke to both of her flatmates before they left separately to travel home for the weekend.
She had invited friends to the apartment for dinner the following day and was making plans for her mother to visit the next week.
She was reported missing by a friend two days later on 28 March 1993.