The rate at which food prices are rising fell for the second month in a row in May but remains "incredibly high", says research firm Kantar, reported by the BBC.

Prices were up by 17.2% from a year ago in the four weeks to the middle of May, down from 17.3% last month, it said.

Food price rises are expected to ease further later this year, but Kantar said an average annual grocery bill is now up to £833 higher than a year ago.