A man has sustained head injuries and broken limbs after he was beaten with metal bars.
The victim was hospitalised after the assault in Larne's Millbrook area shortly before 10.30pm on Saturday.
Two men carrying metal bars – whose identities are not known – entered a property and assaulted the man, who is aged in his 20s.
He sustained head injuries and a suspected broken arm and leg.
A woman who was in the property at the time of the assault was not injured.
Police have appealed to anyone who witnessed the assault or was in the Millbrook area at the time to contact Larne CID on 0845 600 8000.
Alternatively, they can speak to Crimestoppers anonymously on 0800 555 111.