The candidates contesting the mayor of London election are Ken Livingstone (Labour), Boris Johnson (Conservative) and Brian Paddick (Lib Dem).
Also contesting the mayoral position are Sian Berry (Green) Alan Craig (Christian Peoples Alliance) Matt O'Connor (English Democrats) Richard Barnbrook (BNP) Lindsey German (Left List) Gerard Batten (Ukip) and Winston McKenzie (Independent).
Results are expected on Friday afternoon.