Detectives have arrested a businessman at his home in an affluent Dublin suburb in connection with the killing of a childcare worker.
The man, who is aged in his 40s and is married with two children, is being questioned about the death of Elaine O’Hara, whose body was found in the foothills of the Dublin Mountains last month.
Gardaí detained the man during a dawn raid at his house in the exclusive Foxrock area.
He is being held at Blackrock Garda Station under section four of the Criminal Justice Act 1984.
Ms O Hara, 37, disappeared in August last year after leaving her home in Belarmine Plaza, Stepaside, and later being seen at a footbridge over a railway line at Shankill, Co Dublin.
Detective believe she might have met her killer on an adult website.
Ms O’Hara was described by her family as a popular woman, but was understood to have been vulnerable and had been treated in hospital for depression.
She was also described as a trusted childcare assistant and worked in a newsagents in Blackrock.
It is understood she had been using contact websites in the months leading up to her disappearance, and forensic experts have pored over internet records to build a list of people she came into contact with.
Ms O’Hara’s remains were uncovered by a dog in the Killakee area near Rathfarnham on September 13.
Handcuffs and restraints were found 20km away at Vartry reservoir near Roundwood, Co Wicklow, after some of Ms O’Hara’s belongings were found at the same spot during a spell of low water.