Norwegian officials have confirmed they are refusing to let Apple take aerial photographs of Oslo to create 3D images for its Maps app.
Anyone wishing to fly over the capital to take pictures requires a licence from the authorities,
Norway's National Security Authority said it had security concerns, but added there were other ways the tech firm could get the data it wanted.
Other map brands have used flat satellite images for their services.
Nokia also has 3D-images of Oslo's buildings in its Here product but only for parts of the city.
News of the denial was first reported by the local newspaper Aftenposten. It said officials were worried about the public having access to detailed views of government buildings.