A large explosion has rocked an area of Iran's capital, Tehran, where thousands were gathered for an annual rally supporting Palestinians and calling for Israel's demise. Israel had earlier warned it would target the area. The decision to proceed with the demonstration, which was attended by senior government officials, indicates a fierce determination between both sides. The price of Brent crude oil remained over $100 per barrel amid global concerns about a potential energy crisis. Iran's Supreme Leader, Mojtaba Khamenei, has vowed to continue the attacks and keep the Strait of Hormuz closed, despite U.S. and Israeli warplanes pummeling military and other targets across Iran. Israel suspects Khamenei was wounded at the start of the war.