Businessman has long been of interest to gardai in 32 year-old McCarrick case

Cops descend on west Dublin house they believe is linked to disappearance

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Garda Cold Case Unit and National Bureau of Criminal Investigation.

Gardai said: "The arrest and search operation is being led by an investigation team from the DMR South Central Division, Serious Crime Unit based at Irishtown Garda Station under the direction of a Senior Investigating Officer and with the assistance of the Serious Crime Review Team, Garda National Bureau of Criminal Investigation.

"The search is being carried out by the DMR South Central divisional search team supported by the Garda National Technical Bureau."

"An Garda Siochana has and will continue to keep the family of Annie McCarrick fully updated in relation to this investigation. They have been fully appraised of today's developments."