Angela Merkel: EU treaty change 'not impossible'
Angela Merkel has said Germany would like to be a "constructively partner" with the UK as it seeks to renegotiate its EU membership - and suggested that a treaty change was not impossible.
Her comments came after talks with UK Prime Minister David Cameron.
Mr Cameron has vowed to renegotiate the terms of the UK's relationship with the EU ahead of an in/out referendum on Britain's membership in 2017.