David Cameron visits Scotland - in pictures

The prime minister, David Cameron, during a visit to the Quaker Oats factory at Cupar, Fife Photograph: Andrew Milligan/PA

David Cameron speaks with staff members at Quaker Oats' base in Cupar Photograph: Andrew Milligan/PA

Prime Minister David Cameron tries some porridge during a visit to the Quaker Oats site at Cupar in Scotland Photograph: Andrew Milligan/PA

Master miller Dave Mackay shows the prime minister some samples of the Quaker Oats product at the Cupar mill Photograph: Andrew Milligan/PA

David Cameron talks to Scottish Conservative party leader Ruth Davidson in South Queensferry, Edinburgh Photograph: David Moir/Reuters

Th prime minister David Cameron giving a speech in Edinburgh Photograph: Jeff J Mitchell/Getty Images

Scotland's first minister, Alex Salmond, arrives at St Andrew's House, the headquarters of the Scottish government, in Edinburgh before meeting with David Cameron to discuss plans for an independence referendum Photograph: Andrew Milligan/PA

Alex Salmond and David Cameron in St Andrew's House, Edinburgh during talks on the Scottish independence referendum Photograph: David Cheskin/PA