Gardaí are carrying out a search as part of their investigation into the assault on Quinn Industrial Holdings executive Kevin Lunney.
Mr Lunney was abducted from near his home in Co Fermanagh last Tuesday.
He was attacked and later dumped at the side of the road in Co Cavan.
The 50-year-old executive was left with serious injuries to his legs, torso and face, and police have described the injuries he suffered as "life-changing."
In a statement today, gardaí said: "Gardaí in Cavan are carrying out further a search as part of the investigation into the assault of Kevin Lunney on Tuesday 17th September.
"Local gardaí are being assisted by the Cavan Monaghan Divisional Search unit and the Technical Bureau from Garda Headquarters."
The assault was the most serious incident in what has been described as a "campaign of intimidation" against directors and senior management of Quinn Industrial Holdings.
Staff at the company joined locals on Friday afternoon in marching through the town of Derrylin in Co Fermanagh, where the company is headquartered, to call for an end to the violence.
Just some of the crowd who attended today’s solidarity march in Derrylin after the attack on Kevin Lunney: pic.twitter.com/4MEutZq4Np
— Shane Beatty (@ShaneBeattyNews) September 20, 2019
