Three separate investigations are underway following this morning's fire in Bray in which two fire officers died and another was injured.
The Garda Forensic Unit, the Health and Safety Authority and Wicklow County Council will each carry out their own investigations into the blaze at a disused factory on Dargle Road in Bray.
The men, 46-year-old Brian Murray and 25-year-old Mark O'Shaugnessy, died when the roof of the building collapsed.
Both bodies have been brought to Loughlinstown Hospital where post mortem examinations will be carried out.
Supt Michael Lernihan told RTÉ News that a number of units of the Wicklow Fire Service had attended the fire, which started at around 10.30am. The Fire Service in Bray is manned by part time firefighters.
A technical examination will be carried out by local officers assisted by members of the Garda Technical Bureau.
President Mary McAleese has described the two part-time fire fighters as heroes who had made the ultimate sacrifice to ensure the safety of others.
Mrs McAleese extended her sympathies to the family and colleagues of the officers.
The Minister for Defence Willie O'Dea has described the deaths as an appalling tragedy.
He expressed his sympathies and condolences to the men's families.
He also wished the injured fireman a speedy recovery.
Two books of condolences will be open tomrorow morning for the public to offer their sympathies to the families of the two firefighters who died.
The books of condolences will be in the offices of Bray Town Council and Wicklow Town Council from 10am.