Northern Ireland's Health Minister has confirmed that a baby who died in hospital had tested positive for swine flu.
Michael McGimpsey also confirmed that the infant had a heart condition which was the cause of death.
Details about the baby have not been revealed as the family wish their identity to be kept private.
'My sincere sympathies go the family at this tragic and very sad time,' Mr McGimpsey said.
The death is the second fatality linked to the virus in Northern Ireland.
Last month, a 39-year-old mother of two from Co Antrim became the first swine flu victim.
Caroline Hoy from Ahoghill, Co Antrim, died in Belfast City hospital.
She had been terminally ill with cancer when she contracted the virus.
In July, Coleraine-born solider Lee Porter, 30, died in a hospital in England from swine flu.
There have now been almost 220 laboratory-confirmed cases of the virus in the region, though the number of clinically-diagnosed cases is nearing 9,000.
The number of people that have been admitted to hospital is approaching 100.
However, health officials have scaled down their worst case scenario predictions on the back of evidence that the virus is milder than first feared.
If the most serious projections play out in Northern Ireland when the second wave of the virus hits in the autumn, around 500,000 will contract the condition, 5,000 may be admitted to hospital and up to 525 could die.
Earlier today, Mr McGimpsey assured the Northern Ireland Assembly that his department was taking appropriate action to cope with the outbreak.
