A one-year-old girl is in a critical condition in Temple Street Children's Hospital.
She was found in an ornamental water feature in Co Monaghan.
The discovery was made at a property in the Castleblayney area around 1pm this afternoon.
The toddler - who is believed to have fallen into the water, was removed by air ambulance to the Dublin hospital.
According to a statement from the Gardaí, an investigation was underway.
However the incident is now being treated as a tragic accident.