A senior garda has been appointed to investigate the circumstances surrounding the death of a man while in garda custody in Dublin.

The State Pathologist, Dr Marie Cassidy is expected to carry out a post mortem examination on the body of the man who died in hospital today.

He had been unconscious since Tuesday evening.

Gardaí say he fell unconscious shortly after he was taken into custody for his own safety and that of the public when he declined medical assistance.

Gardaí had responded to a call for assistance to the crew of a Dublin Fire Brigade Ambulance to Dominic Street at 7.25pm, on 10 April. The ambulance crew were dealing with a man who was intoxicated and uncooperative.

After declining assistance from the ambulance crew, gardaí took the man into custody for his own and public safety.

Within a few minutes of his arrival at Store Street Garda Station he appeared to lose consciousness.

A garda member performed CPR on the man before he was brought to the Mater Hospital for treatment.

He never regained consciousness and was pronounced dead today.

A full post mortem is to take place tomorrow.

A Garda Superintendent from outside the district, Superintendent Thady Muldoon, has been appointed to examine all aspects of the incident.