A 27-year-old man has been arrested on suspicion of causing grievous bodily harm with intent after an attack in Londonderry.
A 25-year-old man was injured in a house at Drumleck Drive at about 01:30 GMT on Sunday.
He suffered stab wounds and was taken to hospital but his injuries are not believed to be life-threatening.
The arrested man is being questioned by police.
Detectives at Derry's Strand Road police station have appealed for anyone with information about the attack to contact them on the non-emergency number 101.