The financial regulator, the Financial Conduct Authority (FCA), promptly confirmed it was discontinuing its own separate investigation with immediate effect following a consultation with the SFO.

Tesco, which has suffered a string of recent profit warnings and management exits, is being investigated after the retailer overstated first-half profits by $263 million pounds (424 million).

(Reporting by Kirstin Ridley, editing by Clare Hutchison)