Mageean was unable to compete at the 2024 Olympics because of an achilles injury.
Her death brought widespread tributes from political and sporting figures who noted her immense impact across Ireland and her home community.
Ciara Mageean, the European 1500m gold medallist and two-time Olympian, died at 6.30am on Sunday at the age of 34.
He said: “She was a European champion, two-time Olympian, a proud Irish athlete and an extraordinary person.” He added that her achievements brought immense pride to her local community and to people right across Ireland.
The athlete, from Portaferry in Northern Ireland, died at 6.30am on Sunday.
I know so many from right across Northern Ireland were deeply proud and inspired by Ciara.