A controlled explosion has been carried out on a live maritime flare discovered on the beach at Portstewart.
The flare was reported to police as having been found in the Strand beach area of the Co Derry coastal town shortly before 9.30am on Friday.
The popular stretch of sand was closed as army technical officers were called to the scene, and it has since reopened.
A PSNI spokesperson said: “Our primary aim was to protect the public and I would like to thank the community for their patience and understanding.”