The managers of the Galaxy Leader cargo vessel renewed their calls on Tuesday for the release the 25 crew members of the vessel who have been held hostage by Yemen's Houthi terrorists for seven-months.

On November 19, militants attacked the Bahamas flagged ship using helicopters. The ship managers reported that they captured the Bulgarian master and chief officers, as well as 17 Filipinos, and other sailors from Ukraine and Mexico, as well.

The ship managers said that the Houthis have nothing to gain by keeping the 25 crewmembers and requested their immediate release to their families.

Since November, the Houthis use drones and missiles against ships in the Red Sea and Gulf of Aden. They claim to be acting in solidarity with Palestinians during the Gaza War. In separate attacks, the Houthis have destroyed one ship, captured another vessel, and killed three sailors.

The International Chamber of Shipping (ICCS), which represents shipowners, called the Houthi attack "unacceptable act of aggression that threatens the lives of innocent seamen and the safety of merchant ships".

Houthis launched direct attacks on two ships last week - the Liberan flagged Tutor coal carrier, and the Palau flagged Verbena, loaded with wood building material.

These attacks prompted security analysts to notice a significant improvement in the effectiveness and efficiency of drones and missiles used by militants aligned with Iran.

Safety risks forced rescuers to evacuate crews from damaged ships. One Tutor sailor remains missing. Both ships are now at sea and vulnerable to attack or sinking.

U.S.-led forces conducted airstrikes on Yemen's Hodeidah International Airport, as well as Kamaran Island off the coast of Salif. Reporting by Jonathan Saul, Los Angeles; writing by Lisa Baertlein; editing by Ali Williams.