A 77-year-old man has been arrested on suspicion of attempted murder following a stabbing in Newtownabbey that has left the victim seriously injured.
The incident happened at flats in the Rathcoole Close area shortly after 7pm on Saturday.
The man arrested is also being held on suspicion of wounding with intent to do grievous bodily harm and remains in custody.
The victim is still being treated in hospital, where his condition is said to be serious.
Anyone who saw what happened, or who has any information, is asked to contact police on 101 or anonymously via Crimestoppers on 0800 555111.