The prospect of Scotland becoming independent is creating "massive uncertainty" for businesses, the head of travel firm Thomas Cook has said.
Harriet Green also told the Huffington Post the possibility of a referendum on Britain's EU membership was "unsettling" for firms.
"There are two political uncertainties that are most unsettling for business. The first is the Scottish referendum and the second is the European referendum. Both create massive uncertainty.
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Nicola Sturgeon will hold talks with European Parliament president Martin Schulz in Brussels today.