LONDON, March 18 -- Whatever happens next, Brexit has inflicted unprecedented damage on the UK's financial services industry - which makes up about 6.5 per cent of Britain's GDP.

This is the warning from Nigel Green, the founder and CEO of deVere Group, one of the world's largest independent financial advisory organisations.

Mr Green says: "The actual process of leaving the EU itself is now increasingly irrelevant. Indeed, even if the UK didn't leave, unprecedented damage to the UK's financial services industry has already been done.

"Following years of uncertainty and a lack of firm leadership from all parties, firms across the sector have had to take precautionary action to safeguard their interests.

"Typically, this involves relocati...