Iran announced alternative routes through the Strait of Hormuz on Thursday, instructing vessels to avoid the main shipping lane due to sea mine risks. The directive came during a two-week ceasefire between Iran and the United States. Iran's Revolutionary Guards specified inbound and outbound passages around Larak Island. The strait, narrowing to 21 miles at its tightest point, handles one-fifth of global oil trade. President Trump warned of escalation if Tehran doesn't agree to a permanent peace deal and keep the waterway open.