Iran live updates: Trump admin prepares range of options to target Iran, including 'mother of all bombs,' sources say

At least two people were killed and others were injured after ballistic missiles struck the Yemeni presidential palace in Aden, the seat of Yemen's internationally recognized government, according to the minister of information and a government spokesperson.

Prime Minister Shaya al-Zindani and government ministers were unharmed after four ballistic missiles hit the palace, according to the minister and spokesperson.

The Houthis responded saying any Saudi military presence is a legitimate target.

"The bombing of the Saudi enemy's military operations headquarters in Aden comes within the context of the declared equation of striking Saudi mobilizations wherever they are, and considering any Saudi enemy military presence a legitimate target for our forces wherever they are," Yahya Saree, a spokesperson for the Yemeni Armed Forces, said Thursday.

The United Kingdom Maritime Trade Operations said it has recorded 20 reported attacks in the Strait of Hormuz since Oct. 1, with two incidents reported on Wednesday.

In each case, vessels were struck by what the UKMTO described as "unknown projectiles."

-ABC News' Jamie Dorrington

A U.S. official said Iran lied about a cargo ship that sunk on Wednesday and that Iran attacked the ship, likely with a missile.

Iran claimed the cargo ship sunk after striking a naval mine as it was attempting to navigate the Strait of Hormuz.

-ABC News' Steve Beynon

Iran's Islamic Revolutionary Guard Corps Navy said a cargo ship sunk on Wednesday after striking a naval mine as it was attempting to navigate the Strait of Hormuz via "an unauthorized and hazardous route."

The vessel was carrying more than 2,500 containers and sank in waters south of the strait Wednesday morning due to the intensity of the fire, according to the IRGC.