Will a new kind of supermarket help tackle poverty?

Every year, millions of tonnes of shop food are thrown away.

At a time of austerity, with people making use of food banks, shops are coming under increasing pressure to ensure surplus food does not end up on a rubbish tip.

One possible solution is the 'social supermarket' - a membership scheme that allows people to buy high street food brands at a fraction of the usual price.

The scheme has been trialled in South Yorkshire and in London.

The BBC's Jon Brain reports from south London.