Munster and Ireland rugby great Anthony Foley died of an ''acute pulmonary edema'', an autopsy has revealed.
The 42-year-old was found dead in a Paris hotel on Monday morning (NZT) and an autopsy has discovered he had a heart rhythm disorder.
Other toxicological analysis is underway with results due in the next few weeks.
Foley played 62 times for his country and led Munster to a European title in 2006.
His funeral mass will take place on Saturday morning (NZT).