SNP Westminster leader Ian Blackford suggested the result had cemented its case for a second referendum on independence in the event of a no-deal Brexit.

"We stood on a mandate of asking the people of Scotland to reject Brexit - that we don't want to be taken out of the European Union against our will so, (it was) a very clear message for ourselves and indeed the other Remain parties in Scotland as well," he told BBC Breakfast.

READ MORE: European elections 2019 live results in Scotland 

"So, we've really rejected Brexit and in particular we've rejected a no-deal Brexit."

Mr Blackford said that a situation that sees Scotland "dragged" out of Europe would mean Westminster "has to recognise that the Scottish National Party has a mandate for an independence referendum and we need to be able to secure our own future as a European nation".

Scottish First Minister Nicola Sturgeon says she has a smile on her face over the results so far in the European elections.

Speaking during a visit to Dublin on Monday morning, she said: "It was very strange to watch the election unfold from afar, I got so twitchy at not being at the count watching the votes pile up, I started to say I wanted to go and gatecrash an Irish count to get a sense of the occasion, but I was talked down from that.

"It's an absolutely fantastic result from my party's perspective, we didn't just win the election, we are polling 20-plus points ahead of our nearest rivals, it's astonishing, astonishing for any party, but our party has now been in government for 12 years, so as well as being a very clear anti-Brexit vote, I think it's an endorsement of our party's record in government.

"The highest vote share for any party in the UK, I think one of the highest vote share for any governing party anywhere in the European Union. I've got a smile on my face this morning.

READ MORE: European elections 2019: Every Scottish local authority result 

"One of the other really astonishing things about the election in Scotland last night was the collapse of the Labour vote. When I was first in politics all those years ago, the joke in Scotland used to be you didn't count the Labour vote, you weighed it, and now Labour polled 9% of the vote in Scotland.

"The lesson of that in this election is that they paid a price for sitting on the fence on Brexit

"My party has taken a consistently anti-Brexit position and I think that's fair to say that was vindicated in the election so far."

HeraldScotland:

SNP Westminster leader Ian Blackford said Labour had "paid the price" for their "constructive ambiguity" as he hailed his party's "best-ever" European election result.

"We've been in power in Scotland now for 12 years and I think the fact that we've had our best-ever European election result and we went to the people of Scotland and said a vote for the SNP is a vote to stop Brexit.

"It's a vote to respect the result that we had in Scotland in the referendum in 2016 when 62% voted to remain," he told BBC Radio 4's Today programme.

"I think Labour have paid the price for the constructive ambiguity that has been much talked about - you cannot face two directions at the one time."