FTSE 100 Live: Stocks rise; US threatens Iran with ‘economic onslaught’ as oil drops back

Welcome back to the City AM FTSE 100 liveblog. The blue-chip index jumped on Tuesday morning as investors brushed off the US’ threats of the “greatest financial offensive ever” against Iran and its trading partners. At a press conference last night, US Treasury Secretary Scott Bessent’s threatened an “onslaught” of new economic sanctions against Iran…