Ian Blackford has accused Theresa May of 'perhaps inadvertently' misleading parliament over her Brexit deal in a heated exchange in the House of Commons.

The Prime Minister was accused of "misleading the House of Commons" by the SNP over the Irish backstop after the full Brexit legal advice was published.

Speaking during Prime Minister's Questions, the SNP MP said: "The Prime Minister has been misleading the house, inadvertently or otherwise."

The Speaker, John Bercow, then intervened stating: "There can be no suggestion of otherwise.

"The Right Honourable Gentleman must make it clear that there is no suggestion that the Government is misleading the house deliberately.

"There can be no question of that. 

"If the Right Honourable Gentleman wants to use the word 'inadvertently' which people do now and again, he can, but there must be no ambiguity on the point and I ask the Right Honourable Gentleman to clarify that matter."

Ian Blackford continued however: "Mr Speaker, I did use the word inadvertently and I repeat it. Since the Prime Minister has returned from Brussels with her deal, the Prime Minister has been misleading the House, perhaps inadvertently."

Mr Blackford was then interrupted by members of the House, with the speaker once again intervening saying: "Order. I always want the Right Honourable Gentleman to be heard fully and he will be.

"But there can be no imputation of dishonour, and the insertion of the word 'perhaps' suggests the Right Honourable Gentleman wants to keep his option open.

"The option of imputing dishonour does not exist. That word must now be removed. Please rephrase continue and complete. Briefly. "

This led Mr Blackford to alter his wording to say she had done it "perhaps inadvertently". 

Mr Blackford once again took to the floor however saying: "Mr Speaker, I say again, inadvertently.

"The Prime Minister must explain once again why she continues to deny Scotland the rights and opportunities that her deal offers to other parts of the United Kingdom."

In response, Mrs May said the copy of the full legal advice he was holding was "no different" to the statement the Attorney General Geoffrey Cox made on Monday.

She added: "I have myself said on the floor of this House that there is indeed no unilateral right to pull out of the backstop.

"What I have also said is that it is not the intention of either party that a) the backstop should be used in the first place, or ... b) that if it is used, should be anything other than temporary."