One man lost his life, and a woman sustained serious injuries after a group of men broke into a house in Ballincollig, Co. Cork, and assaulted the people inside.
The incident happened at around 3am. It is understood that at least another woman and two small children were present at the house.
The man and woman were rushed to hospital, where the man was pronounced dead a short time later. The woman remains in hospital with serious injuries.
Gardai are appealing for witnesses to come forward.