Four masked men armed with a shotgun tied up a man in a house, and then robbed his employer when he arrived home from the local restaurant he runs.
The incident unfolded when the owners of the Wicklow Heather restaurant in the town of Laragh arrived home around midnight on Monday night.
The couple live very close to the restaurant on a secluded laneway up a hill.
When they got home, the woman noticed there was a group of men in the house and called gardaí.
She then left - but her husband was confronted by the masked gang, who threatened him with a shotgun.
The men had earlier tied up an employee of the couple, and it appears they were waiting for them to return home.
The raiders took a small amount of cash as well as a mobile phone from the restaurant owner, before fleeing the scene.
There were no reports of injuries, but the couple and the employee were said to be shaken by the experience.
Gardaí in Ashford are investigating the incident.
It is understood a site in the Booterstown area of Dublin also became part of the wider investigation into the incident yesterday.
Yesterday morning a garda four-wheel-drive vehicle arrived at the scene in Laragh and evidence bags containing clothing were taken from it and shown to detectives, who noted their description.
It is suspected the clothing was collected by investigating gardaí to see if any of the witnesses to last night's aggravated burglary could recognise them as being the same as clothing worn by the gang members.
Gardaí also carried out forensic searches in the undergrowth in the immediate vicinity of the house and the laneway.
An area further up the laneway which overlooks the house was the centre of a ground search involving a search team who went through the long grass and undergrowth on their hands and knees.
Meanwhile, in the house where the incident took place, a separate team from the garda technical bureau searched and photographed the interior.
The Wicklow Heather restaurant is a popular destination for families and tourists alike given its close proximity to Glendalough, as well as the Sally and Wicklow Gaps.