UK's 'Out' campaign ahead - poll

The campaign for Britain to leave the European Union has established a one-point lead over the rival "In" camp on the eve of the EU membership referendum, according to an opinion poll published by polling firm Opinium.

The survey, released on Wednesday, put support for "Leave" at 45 per cent and "Remain" at 44 per cent.

Opinium's previous poll, published on Saturday, had put the two camps level at 44 per cent each, based on polling between June 14 and 17.

Three other opinion polls were expected to be published later on Wednesday.