Oil prices have jumped more than 3%, with Brent crude futures rising $2.67, or 3.51%, to $78.68 a barrel. The rise reflects growing concern that US-Iran fighting could disrupt shipments through the Strait of Hormuz. 🔴 LIVE updates: https://t.co/9GK66FO7QY https://t.co/ntnW3Lngvf