US stocks today: Dow Jones falls 300 points as oil price crosess $100

US markets opened sharply lower with the Dow Jones falling 300 points after Brent crude prices surged 3% to cross $100 per barrel. The spike in oil prices was triggered by renewed US-Iran attacks that have disrupted oil shipments through the Strait of Hormuz, a key global chokepoint. European markets also declined while Asian markets traded mixed, indicating broad global risk-off sentiment.