PRIME Minister David Cameron said during a campaign trip that the First Minister is "in a muddle" over Europe.

"If Scotland votes for separation it leaves the European Union automatically," he said on a visit to Royal Navy supplier MacTaggart Scott in Loanhead.

"It then has to join the queue to get back into the EU, and there can be no guarantee that that will be a swift or easy process.

"If Scotland votes to stay inside the UK, we're members of EU.

"I've promised a referendum on that membership before the end of 2017 and that is a position that is supported by a maj­ority of people in Scotland, who think it is right to ­renegotiate to get a better relationship with Europe.

"It's not just supported by a majority of Scots, it's also supported by a majority of Alex Salmond's own party, so I'm not surprised he's in a bit of a muddle about this issue."