EU's Van Rompuy in reform warning

Press Association
Van Rumpoy and Cameron
Van Rumpoy and Cameron

AP Photo/Lefteris Pitarakis

British attempts to claw back powers from Brussels would put the future of the single market at risk, the president of the European Council has claimed.

In a stark warning Herman Van Rompuy cautioned against any attempt to "undermine" the union and claimed cherry-picking policies would see the EU "unravel".