A number of shots have been fired at a house in Ballyclare.
It happened at approximately 12.30am on Tuesday morning in the Rashee Road area.
No-one was in the property at the time.
Two men were seen running from the scene in the direction of Ballyclare.
Detective Inspector Skelly said: "I would appeal to anyone who may have noticed any suspicious activity in the area or who has information which would assist the investigation to contact Detectives at Newtownabbey on the non-emergency number 101.
"Or, if someone would prefer to provide information without giving their details they can contact the independent charity Crimestoppers and speak to them anonymously on 0800 555 111."