The FTSE 100 fell more than 0.5% on Monday as renewed tensions between the US and Iran weighed on sentiment, with oil and gas prices jumping around 6%. President Donald Trump said the Strait of Hormuz will remain blocked until a deal is reached, adding he would not rush negotiations. Rolls Royce dropped over 3.5% and mining stocks were under pressure as Antofagasta lost more than 4.5% while Fresnillo and Endeavour fell about 3% and 1.2%. Travel stocks also weakened, with EasyJet down over 3% and IAG falling 2.1%, while major banks including HSBC, Lloyds, Barclays and NatWest declined between 1.4% and 2.5%. In contrast, energy and utility names gained, with BP and Shell rising 2.6% and 2.2% and Centrica and SSE also advancing. Investors now look ahead to updates from Rio Tinto, AB Foods and British Land.