US President Donald Trump has rejected an Iranian offer to reopen the Strait of Hormuz, the narrow waterway Gulf oil exporters use to ship crude to world markets.
A cargo ship was hit near Qeshm Island in the Strait of Hormuz, a narrow waterway between Iran and Oman that much of the world's oil passes through.
US aircraft struck Iranian rocket launchers on Larak island in the Strait of Hormuz, a narrow waterway that much of the world's oil ships through.
Two Filipino sailors died when a Saudi oil tanker, the Sidr, was hit in the Strait of Hormuz, the narrow waterway ships use to carry oil out of the Persian Gulf.
Iran has hit back at American forces after the United States struck it first, turning weeks of hidden, low-level attacks into open airstrikes between the two countries.
The United States has struck Iran a second time, and Iranian state media reported explosions afterward.
Oil prices rose above $90 a barrel after the Strait of Hormuz, the main route ships use to carry oil out of the Gulf, stayed closed during the Iran conflict.
US forces struck Iranian rocket launchers on an island inside the Strait of Hormuz, the narrow waterway that much of the world's oil shipments must pass through.
Iran has been blocking ships from the Strait of Hormuz, the only sea route in or out of the Gulf, amid a standoff with the United States.
Oman is trying to arrange a temporary shipping route through the Strait of Hormuz, a narrow sea passage between Iran and the United States that carries about a fifth of the world's oil and gas.
A projectile struck an oil tanker off the coast of Oman in the Strait of Hormuz, a narrow sea passage that nearly all Gulf oil exports must travel through, including from Iran.
The United States has asked allied countries and China to join a campaign of economic sanctions against Iran, part of President Trump's effort to raise pressure on Tehran during a stalled war.