A man and woman escaped injury when a shot was fired through the living room window of a house in Larne.
Police said the incident, at Ferris Avenue, happened at around 1am on Friday morning.
Alliance East Antrim MLA, Stewart Dickson condemned the incident and urged people to come forward to the police with information.
“Guns have no place on our streets,” he said. “There is absolutely no justification for this attack. Somebody could have been seriously hurt or worse.
“My thoughts are with the couple who were inside the house at the time. It must have been a terrifying experience.
“If anybody has any information about this attack then I would urge them to contact the Police.”