DUBAI, United Arab Emirates — Yemen’s Houthi rebels unilaterally freed 153 war detainees Saturday, the International Committee of the Red Cross said, one of several overtures in recent days to ease tensions after the ceasefire in the Israel-Hamas war in the Gaza Strip .

Yemen’s Iran-backed Houthi movement has released the crew of a cargo ship more than a year after its fighters hijacked the vessel in the Red Sea, as part of its campaign of attacks in support of Hamas in its war against Israel.

British and American ships are tentatively returning to the Red Sea after Yemen’s Houthi rebels vowed to hold off attacks on vessels linked to both nations, a sign that traffic on one of the world’s main trade routes could normalize after more than a year of disruption.

The ship was drifting and ablaze some 225 kilometers off the coast of Hodeida, a port city in Yemen held by the country's Houthi rebels