Police are investigating separate shooting incidents in Dunmurry and Coleraine over the weekend.
In Dunmurry two masked men were seen in Pembroke Manor on Saturday evening after a gun attack on a house.
Police said they received a report of the "planned and ruthless attack" just before 7pm.
In Coleraine damage was discovered to two windows of a property in Willow Drive following reports of shots being fired at around 2.10am yesterday.
The PSNI described it as a "reckless attack".
Police are appealing to anyone who witnessed the incidents or has any information to contact them on 101.