The coffins carrying Grace and Luke McSweeney have entered St Peter and Paul's Church side by side.
Two hearses carrying the bodies of the two siblings who tragically died on Friday arrived at the church just after 11.30am.
Hundreds of mourners followed the hearses as they came to a stop just aside the church.
Both coffins - one white and one brown - were carried by loved ones into the church for the funeral mass.
The siblings have been placed by the altar in St Peter and Paul's Church with pictures of each on the coffins.
Video footage and photos: Faye Dorgan
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