Ireland braces itself for 'definite' downside of Brexit

Half-finished drinks and Union flags lie on a table at a A Leave.eu party after polling stations closed in the Referendum on the European Union in London, Britain, June 23, 2016. REUTERS/Toby Melville

DUBLIN (Reuters) - Northern Ireland's deputy leader Martin McGuinness called on Friday for a vote to unite the two sides of the Irish border as stocks tumbled in the economic and political fallout from Britain's decision to quit the EU.

Ireland has the EU's fastest-growing economy but also more to lose from Brexit than any other member state, with far-reaching implications for its trade, economy, security of energy supplies and peace in British-ruled Northern Ireland.