LIBDEM leader Willie Rennie has said the Yes campaign's pension plans are "in tatters" after fears were raised about future affordability.

Mr Rennie said Alex Bell, a former advisor to the First Minister, said the state cannot afford to keep paying pensions.

Mr Bell is reported as saying: "At some point in the near future we have to be honest about pensions.

"The state cannot afford the promises it made."

Mr Rennie said: "These are devastating claims from Alex Salmond's former policy chief, who was an architect of the nationalists' white paper.

"Alex Salmond's pension promises are now hanging by a thread.

"People will be alarmed by the nationalists' public fall-out over pensions which is taking place so late in the day.

"If Alex Salmond's own advisors still don't believe in his independence plan for pensions, why should the people of Scotland?"

Gregg McClymont, Labour MP for Cumbernauld and Kilsyth, said: "The people of Scotland deserve the facts and the fact is, if we vote to leave the UK, we vote to leave the UK pensions system.

"The UK state pension would cease to exist in Scotland. The security and certainty of the UK's pension promise would disappear overnight for Scottish pensioners."