Celebrity chef Marco Pierre White, London Mayor Boris Johnson and F1 boss Sir Frank Williams, are among the latest confirmed guests for the funeral of former British Prime Minister Margaret Thatcher.

Businessman Gerald Ronson, who was jailed for his part in the Guinness shares scandal, will also join mourners at St Paul's Cathedral on Wednesday.

Downing Street says Daily Mail editor Paul Dacre and the former TV newsreader Martyn Lewis will also be in attendance.