Jeremy Corbyn has rejected the prospect of campaigning with David Cameron in the event of a second independence referendum.
The new Labour leader also launched a broadside against the SNP, claiming the party’s record in government doesn’t live up to its anti-austerity rhetoric.
Asked by the BBC’s Andrew Marr if he would be “standing alongside David Cameron saying ‘you must stay in the UK’ to the Scottish people” during a TV interview, he said: “No, I will not be standing alongside David Cameron.
“I will be standing alongside Kezia Dugdale and the Scottish Labour Party.”
The tri-party Better Together campaign is blamed by some for Labour’s recent electoral collapse in Scotland.
Mr Corbyn also slammed the SNP’s cutting of college places and funding of local government.
He added: “If you are poor in Glasgow, you’re poor in Birmingham, you’re poor. If you need a house in Glasgow, you need a house in London, you need a house.
“Flags don’t build houses.”
SNP Westminster leader Angus Robertson branded Mr Corbyn’s comments “ill-informed”.
He said: “Mr Corbyn may be uncomfortable about standing shoulder to shoulder with David Cameron, but when it comes to devolving powers to create jobs, protect trade union rights and to protect Scots from Tory welfare cuts, his party remains firmly on the side of the Tories rather than supporting the clear wishes of the people of Scotland.”
Meanwhile, Mr Corbyn is set to avoid a showdown over the renewal of the Trident nuclear missile system at conference because motions on the issue have not won approval.