President Trump said in a newspaper interview that the United States might try to invade the Persian Gulf island, which is Iran’s main oil export hub.
Diplomats from around the region met in Pakistan, and the U.S.-Israeli bombardment hit a southern Iranian port, killing at least five people, Iranian state media said.
The war with Iran escalated on Saturday as the Iran-allied Houthis joined the conflict and Israel bombarded Tehran with airstrikes.
The Ukrainian president visited the Middle East, where he sought to shift his country from a recipient of military aid to a supplier.
The foreign ministers of Saudi Arabia, Turkey and Egypt are expected in Islamabad on Sunday as the Pakistani government strives to find a diplomatic solution to the war.
France and Britain are leading planning to have warships escort vessels through the Strait of Hormuz, which officials say is farther along than has been revealed publicly.
The authorities have made a wave of arrests to stop people posting footage of strikes, citing security risks. Experts also see a fear of damage to the countries’ image as safe havens.
President Trump pivoted after escalating threats. Israel also announced it had killed an Iranian commander leading efforts to block the Strait of Hormuz to almost all shipping traffic.
A jumble of emissaries — a friend, a family member, a dove and a hawk — on the Iran crisis reflects President Trump’s improvisational approach.
Republicans and Democrats alike have criticized the Trump administration’s moves, taken to stabilize oil markets rocked by the war with Iran, warning that it is benefiting two U.S. adversaries.