Gardaí were called to a home at Hassetts Villas in the Thomondgate area of Limerick around 12.40 this morning, following reports of a disturbance.
There they found a 37-year-old woman suffering from suspected stab wounds.
The woman was taken to University Hospital Limerick, where her condition is described as critical but stable.
A 28-year-old man was arrested at the scene.
He is being detained at Henry St Garda station under section 4 of the Criminal Justice Act.
