Gardaí are investigating the separate deaths of two young people in Dublin and Donegal at the weekend.
Both are believed to have been attending parties prior to becoming ill, and gardaí have ruled out foul play in each case.
The results of a postmortem on a 15-year-old Dublin teenager who died after he attended a house party in Darndale at the weekend are due later today.
Gardaí in Donegal town were today also investigating the death of a local 19-year-old man, who is believed to have fallen unconscious after attending several parties in the area on Saturday night.
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Postmortems on both men are to be carried out today.