Tesco's chief executive Dave Lewis: Full interview

Tesco has suspended four executives, including its UK managing director, after the supermarket overstated its half-year profit guidance by £250m.

The amount equates to almost a quarter of its expected profit for the period.

Speaking to the BBC's Simon Jack, Chief Executive Dave Lewis said the company had launched a "full and frank investigation" headed by Deloitte, and said it is now working to establish the impact of the issue on its full-year results.

Watch the full version of the interview.