If Scotland votes for independence next month, the remaining UK government would have to move its Trident nuclear deterrent out of the country - but a new report suggests the cost of the move would be far lower than expected.
The move would most likely take more than a decade and cost up to an extra £3.5 billion, according to a report by the Royal United Services Institute - but this is far below previous estimates of up to £25bn.
ITV News correspondent Martin Geissler has the full story.
More top news
A police officer has suffered potentially life threatening injuries after being assaulted in Doncaster.
Eight cases of fraud and four possible thefts are being investigated, Scotland Yard said.
The US president is set to call on leaders to rally together in the face of threats from North Korea and Iran at the UN General Assembly.