Pro-EU Dutch parties see surprise gains in EU polls

AMSTERDAM, May 24 (Reuters): Dutch mainstream, EU-supporting political parties made gains in the first test of the European Parliament election, according to an exit poll that showed a surprise Labour victory and a weak showing for eurosceptics in the Netherlands.

The Netherlands and Britain were the first of 28 member states to vote in the EU election on Thursday.

In Britain, where results will not be released until Sunday, opinion polls showed Prime Minister Theresa May's Conservative Party hemorrhaging support to veteran eurosceptic Nigel Farage's newly formed Brexit Party.