The US Central Command (CENTCOM) on Tuesday said that, together with a "coalition vessel," it destroyed two unmanned aerial systems (UAS) launched from an areas of Yemen controlled by the Iran-backed Houthi militia.

Armed rebels of the Iran-backed Houthi militia take part in a demonstration. Iranian-backed Houthis on Monday hit a Swiss-owned, Liberian-flagged container vessel in the Gulf of Aden with an anti-ship ballistic missile fired from Yemen, the US military said.

"It was determined these weapons presented an imminent threat to merchant vessels and U.S. Navy ships," the Central Command statement said.

CENTCOM also said that Houthi militants "fired one close-range ballistic missile" from Yemen towards the destroyer USS Laboon in the Red Sea. "The missile did not impact the vessel and there were no injuries or damage reported," it said.

The Islamist militia has vowed to attack ships in the Red Sea linked to Israel. However, many of the ships that have come under fire have no connection to the country.

The Houthis say they want to force an end to the Israeli attacks in the Gaza Strip, which followed the unprecedented massacre by the Palestinian Islamist organization Hamas in Israel on October 7.

Because of the continuing Houthi attacks, major shipping companies are increasingly avoiding the shortest sea route between Asia and Europe and sailing around South Africa's Cape of Good Hope instead.

Several Western states, including the US and the UK, have launched operations to protect ships in the region.

US conducts defensive airstrikes as Houthis fire anti-ship ballistic missiles

The United States has conducted six defense strikes and fired 18 anti-ship missiles in Yemen after the Houthis fired two anti-ship ballistic missiles into the Red Sea, according to the United States Central Command.

The Iranian-backed Houthis fired two anti-ship ballistic missiles from Houthi-controlled areas into the Red Sea toward merchant vessel Pinocchio, a Singaporean-owned, Liberian-flagged ship, between 8:50 a.m. and 12:50 p.m. local time on Monday, according to CENTCOM.

“The missiles did not impact the vessel and there were no injuries or damage reported,” CENTCOM said.

In retaliation to the initial strikes, “United States Central Command conducted six self-defense strikes destroying an unmanned underwater vessel and 18 anti-ship missiles in Houthi controlled areas of Yemen” between 2:50 p.m. and 11:30 p.m. shortly after the initial strikes, CENTCOM said detailing their operation.

“It was determined these weapons presented an imminent threat to merchant vessels and U.S. Navy ships in the region,” officials said. “These actions are taken to protect freedom of navigation and make international waters safer and more secure for U.S. Navy and merchant vessels.”

When the initial attacks began last November, the Houthi rebels initially framed them as a method of pressuring Israel to stop the war that was launched following the Oct. 7 terror attacks. However, as shippers began to avoid the regions of the Gulf of Aden and the Red Sea, the rebels strikes still continued.

The U.S. and coalition warships have been responding by shooting down any Houthi fire that's come near them which has left the Houthis targeting commercial ships with little to no protection.

Since the U.S. began its campaign of airstrikes in January, the U.S. military says it has shot down and destroyed more 100 Houthi missiles, according to an Associated Press analysis of its statements, but the onslaught from the Houthi rebels, meanwhile, has shown no signs of abating.