An 18-year-old man and a 19-year-old woman have both been charged over an attack in which a man was beaten unconscious and a 17-year-old was also stabbed.
The incident happened at Silverstream Avenue in Bangor on Friday night.
Police believe a hammer was used to beat the 20-year-old man while the teenager was stabbed in his side.
The pair have been charged with causing grievous bodily harm with intent and having an offensive weapon.
They are due to appear at Newtownards court.
Both were arrested on Saturday night.
A police spokesman said that detectives still want to speak to another man who may have been involved in the attack.
The pair who were attacked are not believed to have suffered life-threatening injuries.