Iran says it will show ‘zero restraint’ if energy infrastructure is targeted again

Foreign minister issues warning after Israeli attack on South Pars gasfield and as Qatar reels from retaliatory strike

• ‘Doomsday scenario’: a visual guide to the oil and gas site attacks in the Middle East

• Middle East crisis – live updates

Iran said on Thursday it would show “zero restraint” if its energy infrastructure was targeted again as Qatar revealed that almost a fifth of its liquefied natural gas export capacity had been knocked out in an Iranian strike that is likely to have a years-long impact.

The warning, delivered by the Iranian foreign minister, Abbas Araghchi, followed Israel’s attack on Iran’s massive South Pars gasfield – which it shares with Qatar – which triggered Iranian retaliatory strikes on Qatar’s Ras Laffan gas complex and other Gulf neighbours, sending stock markets tumbling globally and triggering sharp increases in gas prices.