Two 'crude incendiary devices' believed to be containers of flammable liquid have been placed under two cars at a home in Banbridge, police have said.
One of the vehicles was damaged in a fire at the Larchwood Court property at around 3am on Friday.
While a similar device was found under a second car at the property.
Police will be at the property this morning to examine the scene in daylight.
They have appealed for anyone with information to contact them.