Sainsbury's boss warns of challenges in marketplace

Sainsbury's has announced that like-for-like sales fell almost 3% in the three months to September.

In his first broadcast interview since taking of from Justin King, Sainsbury's CEO Mike Coupe explained on the Today programme that "in the last few months the pace of change in our industry has changed beyond all recognition".

First broadcast on BBC Radio 4's Today programme on Wednesday 1 October.