European Commission President Jose Manuel Barroso angered Scottish nationalists when he warned in February it would be "difficult, if not impossible" for an independent Scotland to become an EU member.
But commission spokeswoman Pia Ahrenkilde Hansen refused today to comment when journalists repeatedly asked what would happen if Scotland voted to secede from the United Kingdom in a September 18 referendum.
"The European Commission very much respects the ongoing democratic process and recalls...That it is for the Scottish and for the British citizens to decide on the future of Scotland," she told a daily press briefing.
"This is why I'm not going to now detail what we've already very, very clearly described and explained in the past."
The campaign is heating up as an opinion poll published over the weekend put the separatists ahead of the pro-union camp for the first time.
In a BBC interview in February, Barroso, who heads the EU executive, said it "will be extremely difficult to get the approval of all the other (EU) member states to have a new member coming from one member state."
"The question of Scotland's independent membership of the EU is a matter for the democratic wishes of the people of Scotland and the views of other member states -- not the European Commission," she said.
