A couple were attacked in their home by a group of men in the Innishmore housing estate in Ballincollig, Co Cork in the early hours of Tuesday morning.
The alarm was raised and paramedics and gardaí arrived at the scene.
The man and woman (in their 20s) were taken to Cork University Hospital after sustaining non-life threatening injuries in the assault which happened just before 1am on Tuesday.
The area has been cordoned off for a forensic examination. Gardaí have launched an investigation into the incident and are carrying out door-to-door enquiries. There is no known motive for the attack.
Members of the public who may have witnessed the incident or have information are asked to contact Gardaí in Ballincollig on 021 4214680, the Garda Confidential Line on 1800 666 111 or any Garda station.