NIGEL Farage has compared the SNP to the Nazi party during a speech in the USA.

The Ukip leader referred to Nicola Sturgeon as “that appalling woman” and said Ukip’s failure at the election was because David Cameron promoted fear of the SNP among the electorate to win votes for the Tories in England.

According to reports on the Breitbart News website, he said: “That appalling woman” referring to the First Minister, “she represents a party that are nationalists and socialists at the same time… did I really say that? Well to hell with it, it’s true”.

Mr Farage, who failed to win a seat at the General Election was speaking at the Heritage Foundation in Washington where he also criticised President Barack Obama.

He said he was “tired of the Obama line, and the State Department line” which he said was to urge Britain to remain an EU member state.

He said he wanted a resurgence of the US/UK special relationship instead of the EU.

Mr Farage said: “We are your greatest ally on this planet. But if we lose this referendum, our ability to be your greatest ally will diminish by the day”.

“Please can we have no more of Obama telling us how good it (the EU) is for us.”

Humza Yousaf SNP MSP for Glasgow and Scottish Government external relations minister said Mr Farage and his party were attention seekers incapable of respect.

He said: "UKIP are an irrelevance that have been rejected by the people of Scotland at the ballot box time and time again.

“As Nigel Farage knows all too well, the only way for his party to get attention is to trade in intolerance and insults. Political debate should be conducted in a respectful manner - but it seems UKIP are incapable of doing this."