LONDON, June 24 — Bookmakers dramatically reversed the odds on Britain leaving the European Union today as early results from a historic referendum pointed to strong support for a Brexit.

Just hours after giving odds that indicated an estimated 90-per cent chance of Britain staying in the EU, the main betting companies shifted to make a "Leave” vote the strong favourite.

Betting exchange Betfair moved to odds of 8/13, an implied probability of a Brexit of more than 60 per cent. 

Ladbrokes had odds of 4/7, an implied probability of 63 per cent. — AFP

Supporters of the Stronger In Campaign react after heading the result from Orkney in the EU referendum at the Royal Festival Hall, in London, Britain June 24, 2016. — Reuters pic