Two men are expected to appear in court later this week in connection with the death of 50-year-old Leong Ly Min, who died on Monday night from injuries he received during an attack in Dublin's Temple Bar area last week.
Mr Leong, of Chinese-Vietnamese origin, was a father of five and ran a take-away restaurant on High Street, Tallaght. He was walking along Fownes Street with a friend in the early hours of last Friday when he was attacked.
He was knocked to the ground and received a number of blows to the head.
A friend of Mr Leong, also of Chinese origin, was badly injured in the attack but was later released from hospital.
Mr Leong spent the last days of his life in the intensive care unit of St James's Hospital without regaining consciousness.
His eldest daughter was contacted about her father's serious injuries while on holiday in Canada.
The family have run the Tallaght take-away for 20 years and are well known in the area.
Garda sources said that there did not appear to be a racially-motivated reason for the attack on Mr Leong and his friend.
Shortly after Mr Leong and his friend were attacked, another attack took place on a couple walking along Bachelors Walk, on the other side of the Liffey.
In this incident, two men in their 20s made remarks about the man's wife and then attacked the man.
This man, also in his 50s, was taken to the Mater Hospital and is recovering.
Two men were arrested on Friday morning and subsequently appeared in court on charges of assault causing harm relating to this incident.
They are in custody and are due to appear on remand later this week, when it is expected that the Director of Public Prosecutions will bring further charges relating to Mr Leong's death.
Gardaí report that during last weekend there were a number of serious assaults in Dublin city centre.
A 21-year-old man is said to be in a stable but critical condition in St James's Hospital after being stabbed on Harrington Street on Saturday night.
And the 19-year-old youth who suffered severe head injuries during a fracas in the south Dublin suburb of Goatstown last week remains in a critical condition in the intensive support unit of Beaumont Hospital.
Mr David Fox, from Rosemount Park, Dundrum, was with friends celebrating in advance of the Leaving Cert results when they were set upon outside a pub by another gang. It is understood that the gang had been causing criminal damage to a filling station on Taney Road, Goatstown, last Tuesday.
Mr Fox was knocked to the ground and has remained in a coma since. Gardaí are continuing to question witnesses and suspects in relation to the assault on Mr Fox.
Senior gardaí yesterday said that although there had been an unusual number of serious assaults in Dublin in recent days there was no apparent reason for this.
Gardai in Cork also had to deal with several serious assaults, including one on a serving garda who suffered serious facial injuries when he was struck by a bottle in Cobh on Saturday night.