A well-known businessman has been arrested by gardai and questioned about a false imprisonment allegation.
The high-profile figure was arrested at his place of work after attempts by gardai to meet him by appointment were unsuccessful.
The middle-aged Dublin man was brought to Clondalkin Garda Station, where detectives quizzed him about his alleged involvement in a violent incident in west Dublin during the summer.
It is not suspected that the businessman was directly involved in any violence and it is understood he denies any involvement in the incident.
He was questioned for hours before being released without charge. A file will now be prepared for the DPP.
The businessman was one of a number of men arrested this month about the incident. It is also understood that he denies any knowledge of the other men who have been picked up by gardai.
Gardai also searched the man's home and business.
As part of the same investigation, gardai have been searching for Dessie O'Hare (57) who is believed to have fled north of the Border to a bolthole in Co Armagh.
Nicknamed "The Border Fox", O'Hare was one of the most notorious criminals involved in the Troubles in the North and has been suspected of being involved in extortion activities in recent years.
He was released under the Good Friday Agreement after being given a 40-year sentence for kidnapping and mutilating Dublin dentist John O'Grady in 1987. He was linked to multiple murders during the Troubles.
Gardai rescued O'Grady, but O'Hare escaped. He was caught after a shoot-out in Co Kilkenny.
O'Hare previously attended the Glencree Centre for Reconciliation and claimed that he had reformed and taken up yoga.
Gardai intend to charge O'Hare with criminal offences related to the incident last summer.
Meanwhile, it has emerged that the businessman, who has also been the victim of crime, has links to individuals feuding with associates of murdered Traveller gang boss 'Fat' Andy Connors.
'Fat' Andy (45) was shot dead as part of a bitter cash dispute on August 19, 2014. The father-of-six was brutally murdered in front of his wife Anne and his children at his newly-built home on the night of August 19.
There have been no arrests so far in the detailed investigation into the murder.
'Fat' Andy's extended Traveller gang, which has over 200 members, are the chief targets of the Garda Operation Fiacla, but his murder did not end their organised nationwide crime spree.
The businessman was arrested over two weeks ago but details of the top-secret garda operation only emerged last night.