The BBC reports:

Reports of “flying Toblerones” and objects travelling at 1,100 mph across the Scottish sky have been released by the Ministry of Defence. The files detail how unidentified objects have been witnessed flying over a range of locations across Scotland.Among them were one from a senior air traffic controller at Prestwick Airport who reported seeing a fast-moving UFO on the airport radar.
While four fishermen spotted a flat, shiny object hovering off the coast. The Scottish accounts are among the thousands of reports made of close encounters with UFOs across the UK which have been released in a joint project between the MoD and the National Archives.
For five years the people both you and I represent have witnessed a phenomenon in the area that has been left unexplained The Prestwick airport…