President Catherine Connolly has offered her condolences to the family of a man in his 80s who died after being struck by a bus in Dublin.
She also thanked emergency services for their swift response.
Three other people were injured in the incident on North Earl Street yesterday afternoon.
A man in his 20s is being treated in hospital for serious, but non-life-threatening injuries.
The driver of the bus, who is in her 50s, and another woman aged in her 30s are also being treated in hospital for non-life-threatening injuries.
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Man in his 80s killed, three hospitalised after Dublin bus crash
As it happened: Major traffic incident in Dublin
The Bus Éireann double-decker bus was coming up Talbot Street at around 12.30pm to take a left onto the one-way system onto Marlborough Street.
However, the bus appears to have careered across the road and onto the pedestrianised area of North Earl Street.
Bus Éireann confirmed there were no passengers on board the bus at the time as it was out of service.
It said it was "deeply saddened" to confirm there was a fatality and several injuries after its bus was involved in a "serious collision involving pedestrians".
Chief Executive Jean O'Sullivan said: "We are profoundly saddened by this tragic incident.
"On behalf of everyone at Bus Éireann, I extend our deepest condolences to the family of the deceased, and our thoughts are with all those affected at this very difficult time."
Bus Éireann said it is offering its full support to the relevant authorities as its investigations continue and will provide any additional assistance required.
Dublin Fire Brigade said over 20 firefighters and paramedics, four engines, two emergency tenders with heavy rescue tools and an advanced paramedic response car were dispatched to the incident.
Gardaí are investigating and have appealed to anyone who was in the area between 12.15pm and 1pm and who may have camera footage (including dashcam) to make that footage available to them.
They can contact Store Street Garda Station on 01 666 8000, the Garda Confidential Line on 1800 666 111, or any garda station.
Additional reporting PA
