Brent crude rises above $90 a barrel for the first time since 30 July after US president tells Tehran to surrenderBusiness live – latest updatesOil prices have risen again after the two-month window to negotiate a peace deal in the US-Israel war on Iran expired on Monday with no end to the conflict in sight.Iran said on Monday that it would take a more aggressive stance if talks with the US failed, while Donald Trump demanded Tehran “put up the white flag of surrender” in an interview with Fox N