Gardaí investigating the murder of Christopher Warren from gun shot wounds yesterday have sealed off an area near the Broadstone Bus Station in Dublin in connection with their investigation.
A man in his 20s has been arrested in connection with the death of the 35-year-old.
Mr Warren, from St Teresa's Gardens, sustained gunshot wounds to the chest.
He was pronounced dead at St James's Hospital shortly after being dropped at the Emergency Department.
A car, believed to have been used to transport him there, was later found abandoned on Cork Street in Dublin south inner city.
The exact location where the shooting took place is not yet known.
The man is being held at Kevin Street Garda Station.
Gardaí have appealed for any witnesses who were in the area between 6pm and 7pm yesterday and who heard or saw anything suspicious to contact them.
They have also appealed to anyone who saw the injured Mr Warren being dropped off at St James' Hospital in a blue Mercedes C180 car around 7pm or who saw that car in Cork Street where it was abandoned, to contact them at Mountjoy Garda Station on 01 666 8000.