UK Prime Minister David Cameron says he's "hopeful" of reaching a deal with European leaders in February that will allow him to hold a referendum on the UK's membership of the EU.
In an interview with the BBC the Prime Minister said the vote could follow in the summer if agreement was reached on his reforms at next month's summit.
Mr Cameron reiterated his desire to see the UK remain in a reformed EU, but said he would rule nothing out if his demands were refused.
Olly Barrat reports from London
IN:"David Cameron's..."
OUT: "european union"
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OUT: "being reformed"
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