London Mayor Boris Johnson has attacked EU plans to cap banker bonuses.
He said: "People will wonder why we stay in the EU if it persists in such transparently self-defeating policies. Brussels cannot control the global market for banking talent. Brussels cannot set pay for bankers around the world.
"The most this measure can hope to achieve is a boost for Zurich and Singapore and New York at the expense of a struggling EU.
"This is possibly the most deluded measure to come from Europe since Diocletian tried to fix the price of groceries across the Roman Empire."
More top news
Cloud spoiling full blown blue skies
Millions turned out to vote in the local elections - here are the results.
A man caught swearing at a speed camera has been jailed for perverting the course of justice after trying to dodge 69 speeding charges