Gardaí are investigating the circumstances surrounding the sudden death of a man this morning in Dublin.

The man collapsed on Westland Row at around 7.30am.

The man was in his late 30s, wearing an orange jacket.

A passing motorist stopped and rendered first aid and CPR.

The man was brought to St. James's Hospital but later died.

A post mortem is scheduled to be conducted tomorrow.

There were a number of people on the street at that time and Gardaí are seeking their assistance in relation to the incident.

Gardai in Pearse Street are asking anybody who may have been on Westland Row between 7.25am and 7.45am this morning and witnessed this man or who can assist with the investigation to contact them on 01- 6669000, The Garda Confidential Telephone Line 1800 666 111 or any Garda Station.