An operation was carried out by detectives from Cabinteely today, resulting in the arrest.
A man in his 20s has been arrested following a number of attempted robberies in Dublin.
Staff at a service station on the Clonkeen Road in south-east Dublin were threatened with a knife after a man entered the shop shortly after 11 o'clock last Tuesday night.
Shortly after, another person entered a pharmacy on Foxrock Avenue and threatened staff at knifepoint.
An operation was carried out by detectives from Cabinteely today, resulting in the arrest.

Gardaí Renew Witness Appeal After Fatal Collision Outside Kildare Town
Kildare Students Showcase Projects At Young Scientist And Technology Exhibition
Animals And Heritage At Risk As Alleged Illegal Hunting Leaves Scars On The Curragh
Homeowner Threatened With Blade During Newbridge Break-In
Serious Reliability Issues Highlighted In Data On W6 And X31 Bus Services
Three Males Ransack Athy Home And Steal Shotguns
Driving Test Delays Loom as RSA Testers Back Strike Action
Disruption To Flights In Dublin Airport Due To Severe Weather In Europe