A petrol bomb was thrown at a house in Larne in the early hours of this morning (Wednesday).
The incident happened in Dromaine Drive shortly before 1am.
There were no reports of any injuries. No significant damage was caused to the house.
Detectives are appealing to anyone who noticed any suspicious activity in the area or anyone who has information that could assist with the police investigation to contact them in Larne on the non-emergency number 101.