The Scottish Labour, Conservative and Liberal Democrat party leaders have issued a joint statement setting out their opposition to government plans for a white paper on an independence referendum.
Here is a full copy of the statement.
In May, the people of Scotland voted for a range of political parties, none of which command majority support. The parties we represent - together representing 65% of voters in Scotland - believe that Scotland as a whole, and individual Scots, have the best chance of success and progress inside the United Kingdom.
We therefore regret the fact that the minority SNP administration, representing less than a third of Scottish voters, will tomorrow publish a white paper which is designed to further their party's central objective to take Scotland outside the United Kingdom.
The SNP is squandering taxpayers' money in pursuit of their own narrow and failed agenda. They have promised to build a consensus around the policies they will bring forward for debate in the Scottish Parliament. But this white paper can only create division and uncertainty which will damage Scotland.
The SNP have spoken about a national conversation but tomorrow's publication is about their nationalist crusade. We will listen, but we fear this will be less of a conversation than a one-way megaphone.
We are deeply concerned that the proposals to be made by the SNP are only designed to drag the people of Scotland into a constitutional cul-de-sac. We will not give succour to those who want to end the Union.
Their objective is to end the United Kingdom while our parties want to see devolution succeed inside the United Kingdom. Our parties have differing views on how to reform, maintain, and strengthen the Union, but none of us want to see it ended.
Reforming the Union is in conflict with ending the Union, so there can be no consensus around a minority obsession that will do great damage to Scotland.
In the months to come we will consider how best the interests of the people of Scotland can be served. Though we disagree about the means to achieve it, good governance and basic priorities should come first for Scottish ministers.
Sadly, tomorrow's white paper signals that the constitutional debate, and staging squabbles with Westminster, are the priority of the current minority administration.
We regret the fact that these divisive proposals were brought forward during the recess rather than when parliament was sitting.
We are willing to enter into debate jointly about the way in which devolution within the UK can best develop in the years to come and we believe that colleagues in Westminster have a role to play in that debate.
Before the Scottish Parliament reconvenes we will discuss together the best way to take forward this debate.
Jack McConnell, Annabel Goldie and Nicol Stephen.