A shot was fired in an armed robbery that took place at a filling station at the M9 motorway in Leinster in the early hours today, Wednesday June 6.
Gardaí investigating the robbery have since made four arrests.
The armed robbery happened in Tinryland in Carlow, at Junction 5 of the M9.
Shortly after 2.30am two males, one armed with a gun and the other with a knife, entered a filling station and threatened staff.
One shot was fired during the course of the raid. The males drove off in a dark coloured Volkswagen Golf with a small sum of cash. No one was injured during the incident.
During a follow up operation shortly after 9am investigating Gardaí from Carlow Garda Station assisted by the Armed Support Unit carried out a search at a house in Carlow town.
Two men and one woman (all understood to be in their 20s) were arrested. They are currently detained under Section 30 of the Offences against the State Act, 1939 at Carlow Station.
Gardaí are appealing to anyone in the filling station or the surrounding area between 2:00am - 2:30am to come forward with information by contacting Carlow Garda Station on 059 913 66220 or the Garda Confidential Line on 1800 666 111.
Investigations are ongoing and updates will follow.