Cameron's EU talks enter final stages as UK faces Brexit vote

British Prime Minister David Cameron is facing the fraught final stages of negotiations to secure a new deal for Britain's relationship with the European Union as he prepares for a crunch summit in Brussels.

Mr Cameron has been warned he has an "extra mile" to go to persuade eastern European leaders to agree to proposed reforms and is also battling to keep his party together as Eurosceptic ministers get ready to speak out.