David Cameron has challenged Labour to rule out a "grubby" coalition deal with the Scottish National Party to protect Britain's nuclear deterrent.
Last month, SNP leader Nicola Sturgeon told ITV News that Labour would have to agree to scrap the Trident nuclear programme in any potential coalition deal between the two parties after May's election.
Responding to a question from former defence secretary Liam Fox, the Prime Minister said he would never get involved in any coalition deal to remove Trident ahead of its planned renewal in the next parliament.
He said it was "concerning that almost three-quarters of Labour candidates oppose renewal of trident".
"Now is the time for Labour to rule out any agreement with the SNP because no-one wants to see some grubby deal between the people who want to break up the United Kingdom and the people who want to bankrupt the United Kingdom," Mr Cameron told MPs.
Nicola Sturgeon has told ITV News scrapping Trident would be a "fundamental" issue in a coalition deal with Labour.Read the full story ›
Scotland's First Minister Nicola Sturgeon has said that SNP MPs in Westminster will end their self-imposed ban on voting on English issues in the next parliament.
In an interview with BBC News, she defended the move saying that issues like privatising parts of the health service could have consequences for the Scottish budget.
Speaking ahead of a meeting with the Prime Minister on devolving powers to Holyrood, she said that the move was primarily to protest Scottish interests:
David Cameron is to unveil plans for new powers he claims will make Holyrood "one of the most powerful devolved parliaments in the world".Read the full story ›
The new leader of the SNP Nicola Sturgeon has said she welcomes all new powers but that the Smith report on devolution does not go far enough.
I welcome all new powers - and pay tribute to Lord Smith - but 70% of our taxes and 85% of welfare staying at Westminster not real home rule
Nicola Sturgeon has taken over the leadership of the Scottish National Party (SNP) and will become Scotland's new first minister next week.
Sturgeon, currently the Deputy First Minister, was confirmed as the new SNP leader at the start of the party's annual conference in Perth.
She takes over the reins after Alex Salmond announced he was stepping down as both party leader and First Minister in the wake of the referendum defeat.
Dundee MSP Stewart Hosie will replace Sturgeon as the party's new Deputy First Minister.
Nicola Sturgeon is today expected to formally announce her bid to become leader of the SNP and Scotland's First Minister.
Ms Sturgeon, who has been Deputy First Minister since the nationalists came to power at Holyrood in 2007, has emerged as the overwhelming favourite to take over the post from Alex Salmond.
He announced his intention to step down on Friday after Scotland voted against independence in last week's referendum.
A former candidate for the leadership of the SNP has ruled out standing for the position again in the wake of Alex Salmond's sudden resignation.
After Scots voted against independence, Mr Salmond announced he will be stepping down from the position of both SNP leader and First Minister.
Roseanna Cunningham stood for the leadership of the party against Mr Salmond in 2004.
A spokesman for Ms Cunningham, the community safety minister in the Scottish Government, said: "Roseanna wants to make it quite clear that she has absolutely no intention or desire to stand for either the leadership or the deputy leadership of the party.
Deputy First Minister Nicola Sturgeon has already emerged as the clear favourite to take over from Mr Salmond, when he formally steps down at the SNP annual conference in November.
The Scottish National Party have dismissed Tory proposals for enhanced powers for Holyrood in the event of a 'no' vote in September's independence referendum.
Annabelle Ewing, an SNP member of the Scottish Parliament, said: "The only way to get the powers Scotland needs to build a fairer society and stronger economy is to vote Yes in September.
"There isn't a 'more devolved powers' option on the ballot paper."
The leader of the Scottish Conservatives, Ruth Davidson, will set out proposals for extra tax-raising powers in a speech in Glasgow this morning.