It's 10 years since St Mel's Cathedral in Longford town was re-dedicated after being rebuilt following the massive fire.
The inside of the building was gutted on Christmas Day 2009 in an accidental blaze.
It reopened five years later after a huge building project.
St Mel's Parish curate, Fr Tony Gilhooly, said Mass in the cathedral this morning and reflected on the 10th anniversary of the re-dedication: