Boris Johnson is bookmaker's favourite to succeed Cameron

Former London Mayor Boris Johnson and his wife Marina Wheeler leave after voting in the EU referendum, at a polling station in north London, Britain June 23, 2016. REUTERS/Peter Nicholls

LONDON (Reuters) - Former London mayor and leading Brexit campaigner Boris Johnson is the favourite to succeed David Cameron as Prime Minister, bookmaker Ladbrokes said in a statement on Friday. Cameron said he would stand down by October after voters ignored his pleas to stay in the European Union and voted to leave the bloc in a referendum. Ladbrokes quoted Johnson at evens, ahead of interior minister Theresa May at 3/1 and Justice Secretary Michael Gove at 5/1. (Reporting by Sarah Young; editing by Stephen Addison)