A 14-year-old boy has been arrested in Lisburn after 15 cars and a number of homes were targeted by spray-painting over the weekend.
The affected cars were in the Beechdene Gardens area of the city on Friday night. Paint was also sprayed on the walls and windows of a number of properties in Beechdene Gardens and Pond Park Avenue.
A motive has yet to be established, but police believe the incidents are connected and their investigations resulted in the arrest of the teenager.
Meanwhile a number of cars belonging to spectators at an Ulster rugby match in Ravenhill, east Belfast, were vandalised.
Up to 19 vehicles parked in the Burren Way, North Bank and Killagan Bend areas of the Cregagh estate were damaged after their paint work was scraped with a sharp object, also on Friday, at about 7pm.
Police have appealed for witnesses regarding both incidents to contact them.