Downing Street has refused to wade into a row over the decision to potentially elect former Luxembourg premier Jean-Claude Juncker, after reports emerged that David Cameron warned Britain could leave the EU.
We are not commenting on this. It was a private meeting, a private conversation.
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The talks descended into crisis on Friday when Canada's trade minister Chrystia Freeland walked out of meetings.
Police in New York are still investigating what the substance is and whether it could be harmful.
The Sherlock actor made the comment while he received an award for his humanitarian work.