Four people are still being treated in hospital following Wednesday's crash between a Luas tram and a bus in Dublin city centre.
One woman remains in a serious but stable condition in Beaumont Hospital.
Three other people are said to be in a stable condition and are being treated in the Mater and St James's Hospital.
Red Line Luas services returned to normal yesterday after the incident on O'Connell Street.
The gardaí have carried out a preliminary investigation into the crash and have appealed for witnesses to contact them.
In particular, gardaí are anxious to speak to pedestrians who were outside Clarks shoe shop on Lower O'Connell Street or pedestrians who were on or crossing the Abbey Street O'Connell Street junction.
They would also like to speak to any drivers of private vehicles or taxis travelling northbound towards Parnell Square between 2.30pm and 3.10pm on Wednesday.
Anyone with information is asked to contact gardaí at Store Street at 01-6668000, the Garda Confidential Line 1-800-666-111 or any Garda Station.
