Two men and a woman escaped injury after a shot was fired at a home in Co Derry on Sunday night.
Police are investigating the incident which happened at Laburnum Place, Coleraine, around 10.25pm.
An initial report to police suggested the window had been smashed but when officers examined the scene "it was determined the damage had been caused by a gun shot".
Detective Inspector McKenna said: "Three people, two women and a man, were inside the property when the attack occurred.
"Thankfully, none of them were injured, but they have been left shocked and distressed. This could so easily have resulted in serious injury, or worse. The actions of whoever was behind this sinister attack were beyond reckless.
"We are continuing with our enquiries today and we are working to establish a motive. I am appealing to anyone who was in the area at the time and who saw any suspicious activity, or who knows anything about this sinister attack, to call our detectives in Coleraine on 101 and quote reference number 1700 of 31/01/21."
A report can also be made online using our non-emergency reporting form via http://www.psni.police.uk/makeareport/.
You can also contact Crimestoppers anonymously on 0800 555 111 or online at http://crimestoppers-uk.org/.
