A number of homes were evacuated after the discovery of a hoax bomb in Carrickfergus - the fourth to hit the same cul-de-sac in less than a month.
Yet another device was found in the Broadlands Gardens area in the early hours of Sunday morning.
The object was discovered at the rear of a house at around 1.44am.
The device is not believed to have caused any damage.
Army bomb teams declared it a hoax.
A number of homes were evacuated during the alert - the fourth to hit the area this year.
Residents were evacuated from their homes after two objects were found on January 27.
On January 19, around 30 people were cleared in the same area of the Co Antrim town during a previous alert.
Another the following day was declared a hoax.
During the last security operation, Alliance councillor Gavin Norris condemned those responsible.
"I call on those behind these security alerts to stop their irresponsible actions," he said.
"It is unclear whether these are co-ordinated acts of intimidation, elaborate pranks, or if there is some other reason."