Annual March rate shows impact of Iran war, which also pushed up cost of food and air fares

• Business live – latest updates

UK inflation accelerated to 3.3% in March after the Iran war triggered the biggest jump in fuel prices for more than three years.

In the first official snapshot of the damage to living standards in Britain from the US-Israeli war on Iran, the Office for National Statistics (ONS) said the consumer prices index increased last month from a rate of 3% in February. The rise matched the forecasts by City economists.

HSBC, Barclays, Lloyds, NatWest and Santander will this week discuss with chancellor how to limit effects of conflict

• Middle East crisis – live updates

The bosses of Britain’s “big five” retail banks have been summoned to a meeting with the chancellor, Rachel Reeves, this week to discuss how to limit the economic impact of the crisis in the Middle East triggered by the US and Israel’s attacks on Iran.

The chief executives of HSBC, Barclays, Lloyds, NatWest and Santander have been asked to attend an emergency summit on Wednesday, amid increasing acceptance that a major economic hit from the Iran war is unavoidable.