A mother and her two-year-old son died yesterday in separate hospitals nearly a week after their Dundalk home went on fire.
Marian Moran (25) and her son, Brandyn, were both on life support in hospital following the fire at their home in the early hours of last Saturday.
The fire broke out in their semi-detached home in the Farndreg estate.
Ms Moran was admitted to the Louth County Hospital in Dundalk while Brandyn was transferred to Crumlin Children's Hospital suffering from extensive smoke-related injuries.
Despite the toddler initially improving, his condition worsened unexpectedly last Wednesday.
Ms Moran's seven-year-old daughter, Tamika, was staying with her grandparents on the night of the fire.
Gardaí believe that a chip pan may have been the source of the fire.
An inquest into their deaths will take place later.