David Mundell has sidestepped calls to explain if he objected to the UK Government's £1 billion DUP deal.

SNP MP Pete Wishart (Perth and North Perthshire) said it was wrong to describe Theresa May's agreement as "back door", adding: "This is locked away in secure accommodation."

He highlighted pre-agreement remarks from Mr Mundell, in which the Scottish Secretary said he would not agree to anything which could be interpreted as back door funding for Northern Ireland and meant Scotland and other devolved nations missing out.

Extra money offered to Northern Ireland helped Theresa May secure the support of the DUP's 10 MPs to help prop up her minority administration.

Speaking in the Commons, Mr Wishart said: "The Secretary of State could not be more clear 'I'm not going to agree to anything that could be construed as back door funding to Northern Ireland'.

"This isn't just back door, this is locked away in secure accommodation."

Mr Wishart challenged Mr Mundell to explain what representations he made to Prime Minister Theresa May and if he offered "any objections on behalf of Scotland" at the time the deal was being considered.

Mr Mundell replied: "On June 8 the people of Scotland delivered their verdict on which party in this House stands up for Scotland and Scotland's financial arrangements.

"The Scottish Conservatives got 12 additional MPs, Scottish National Party 21 less."