Extensive damage was caused to a flat following an arson attack in Greenisland.
The incident happened at Glassillan Grove on Saturday (October 6) shortly after 4pm.
No one was inside the property at the time, but considerable damaged was caused.
The Northern Ireland Fire and Rescue Service attended the scene and extinguished the fire.
Detective Sergeant Martin Coulter said enquiries are continuing and they are asking anyone with information to contact police to help bring those responsible to justice.
“We are appealing to anyone who saw anything suspicious in the area to contact detectives on 101 quoting reference number 890 6/10/18. Alternatively, information can also be provided to the independent charity Crimestoppers on 0800 555 111 which is 100% anonymous and gives people the power to speak up and stop crime,” he added.