A taxi driver was found dead on a road a short distance from his car in Co Louth.
Named locally as Martin Mulligan, a father of two daughters and from Dundalk, he is believed to have been attacked and stabbed a few miles outside the town.
A woman who had been travelling along the R177 road shortly after 3am discovered his body and alerted gardaí.
Mr Mulligan was from Lower Point Road in Dundalk and was a well-known independent taxi driver.
The crime scene was in an area known as Kilcurry on what locals call the Armagh Road and only a mile from the border and a few miles from Dundalk town centre.
The spot is also near where the M1 motorway crosses overhead.
Mr Mulligan’s car, a Louth registered Skoda Octavia with a taxi roof sign, was found a short distance away from where his body was discovered.
The taxi was parked just off the road.
Family members visited the scene in the morning as news began to filter through of the violent death.
Two cars, one of which was the taxi driver’s, were taken from the scene of the killing for further forensic tests.
Deputy State Pathologist Dr Michael Curtis conducted preliminary examinations on Mr Mulligan’s body at the location.
It was later removed for a post mortem which is expected to take place later today at Our Lady of Lourdes Hopital, Drogheda.
The road where Mr Mulligan’s body was found is a popular route north from Dundalk into south Armagh.
Gardaí said Mr Mulligan's cab was parked a few yards in on a right turn just off the Armagh Road heading north, near the townlands of Carn More and Kilcurry.
His body was found about 200m-300m away on the road.
Superintendent Gerry Curley, from Dundalk Garda Station, described the victim as a family man and appealed for witnesses.
“He was a family man, a local man, a hard-working man in the Dundalk area,” the officer said.
“We are satisfied it was a violent death.
“We will be seeking assistance from the Police Service of Northern Ireland, as it is close to the border.”
Mr Curley asked anyone who had a lift from Mr Mulligan in the area last night to come forward.
The cabbie is believed to have begun working in the Dundalk area from about 9.30pm on Sunday.
Gardaí also appealed for anyone to come forward who may have seen Mr Mulligan’s car, a beige-coloured Skoda Octavia saloon with the registration 07-LH-5599, in the hours before the discovery.
It is understood the second car taken away for forensic examination was being driven by the woman who discovered Mr Mulligan’s body.
Suspected involvement of Provisional IRA is not a line of inquiry.
Superintendent Curley added that Gardaí are appealing for any person who may have utilised Mr Mulligan’s services during the night to contact them or anyone with information, particularly those who were in the Cran More/Kilcurry area between 1am-3.30am this morning, Monday September 28, 2015 to contact the incident room at Dundalk Garda Station on 042 9388400, the Garda Confidential Line, 1800666111 or any Garda Station.