Attacks by Yemen's Houthis are posing a new threat to the future of energy supplies to the European Union. AP

Two ships traveling in Middle East waters were targeted by Yemen Houthi rebel ballistic missile fire early Tuesday, authorities said, in the latest assaults in the Iranian-backed fighters' campaign of targeting vessels over Israel's war on Hamas in the Gaza Strip.

The first attack happened in the southern part of the Red Sea, west of the Yemeni port of Hodeida, with the projectile causing "slight damage” to the Barbados-flagged, United Kingdom-owned cargo ship Morning Tide's bridge windows, the British military's United Kingdom Maritime Trade Operations said. A small vessel had been nearby the ship before the attack, it added.

The Houthis carried out the attack using three anti-ship ballistic missiles, the United States military's Central Command said early Wednesday.

The Morning Tide’s owner, British firm Furadino Shipping, told The Associated Press no one was hurt in the attack and the ship was continuing onward to Singapore.

A second ship, the Marshall Islands-flagged, Greek-owned bulk carrier Star Nasia, also came under fire from three Houthi ballistic missiles, Central Command said. The USS Laboon, an Arleigh Burke-class destroyer, shot down one missile, the military said. An explosion from one of the missiles caused "minor damage but no injuries” on the Star Narsia, the Central Command said.

A military spokesperson of the Iranian-backed Houthi rebels, Brig. Gen. Yahya Saree, claimed both attacks in a statement.

Since November, the rebels have repeatedly targeted ships in the Red Sea over Israel’s offensive in Gaza. But they have frequently targeted vessels with tenuous or no clear links to Israel, imperiling shipping in a key route for trade among Asia, the Mideast and Europe.

In recent weeks, the United States and the United Kingdom, backed by other allies, have launched airstrikes targeting Houthi missile arsenals and launch sites for its attacks.

Associated Press