A good Brexit will “spike the guns of the SNP” and deliver a blow to independence, Boris Johnson has claimed.

On a visit to Govan Shipyard he said that Brexit can strengthen the union.

The SNP argues Brexit will bolster the case for an independent Scotland as a considerable majority voted to remain and expect Boris Johnson as Prime Minister would increase support even further.

Mr Johnson, said: “If we come out of the EU in the way we all hope and we get a good deal,we are able to start doing free trade deals with our friends around the world. What is the SNP, the breakaway party, going to say then. I think actually far from weakening the union a sensible Brexit will spike the guns of the SNP and strengthen the union.”

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While not compeltely ruling it out he said he was not in favour of having another independence referendum.

He added: “We did it then. (2014) People voted then they were assured that their votes were decisive. They were told this was a once in a generation thing, we should stick to that promise.”

He added: “The union must come first and I believe also as it happens a good deal sensible Brexit will strengthen the union. Are they (SNP) really going to want Scotland to join the Euro, to join Shengen to submit to the whole panoply of EU laws and is it going to be the centrepiece of the SNP campaign. It doesn’t sound like the winning formula to me.”