The Chairman of CIE has claimed that investigations into the Luas and bus crash on O'Connell Street in Dublin will show that the Dublin Bus driver had a green light.
A Dublin Bus and Luas tram collided yesterday afternoon at the O'Connell Street, Abbey Street junction.
More than 20 people were taken to hospital after the accident, which took place just after 3pm.
Chairman Dr John Lynch said the Railway Safety Commission will cover all aspects of what happened yesterday afternoon.
He said the investigation will take some time to be completed.
Dr Lynch said it will look at whether there was a problem with the Luas operation; given the fact the bus driver had a green light. He said the bus driver is badly shaken but otherwise uninjured.
Dr Lynch said that he has reviewed CCTV footage of the incident.
He said that a full investigation will need to take place before the full details of what happened emerge.
Dr Lynch said that whatever occurred was out of the ordinary given the wide nature of the street.
Dublin Bus has been in contact with the passengers affected.
A spokesperson for Veolia Transport, the company which operates the Luas, said it will not be making any comment following the statement by CIE's Chairman on the crash.
She added the company is going to wait for the investigation to take place before making a statement.
Luas service disruption
This morning, O'Connell Street reopened to all traffic.
Disruption to services on the Luas Red Line continues with services running only between Tallaght and Smithfield.
Both the Luas and the bus have been removed from the scene.
Three people are said to be in a stable condition in hospital.
Gardaí, Veolia Transport and Dublin Bus are investigating the cause of the collision.
Gardaí concluded their investigation of the crash scene at 4am.