Brexit: Britain goes to the polls to decide future in EU

Cameron tweets: Vote Remain - so that our children and grandchildren have a brighter future

Cameron and wife Samantha cast their vote in Westminster Pic: Getty

Polls have opened in Britain's historic referendum on whether to stay or quit the country's membership of the European Union.

After a lengthy and at times bitter campaign that has been overshadowed by the shocking murder last week of Labour MP Jo Cox, most opinion polls show the outcome of vote is too close to call.

However, the final poll of the four-month long campaign shows the remain side edging ahead. The IPsos ...