Shipping in the Gulf and along the narrow Strait of Hormuz, which carries around a fifth of the world's oil, has come to a near-standstill since the US and Israel began strikes on Iran on February 28 Iranian explosive-laden boats appear to have attacked two fuel tankers in Iraqi waters, setting them ablaze and killing one crew member on Wednesday, after projectiles struck three vessels in Gulf waters, said port, maritime security, and risk firms.... [4283 chars]