The Global Sumud Flotilla, which includes Swedish climate activist Greta Thunberg among its participants, departed from Barcelona earlier this month aiming to break Israel’s blockade of Gaza and deliver humanitarian aid to the besieged Palestinian territory.

The UN has warned of widespread starvation in Gaza amid Israel’s ongoing military offensive.

In a statement posted on Instagram, the flotilla organisers said the mission was temporarily halted after one of the ships, Johnny M, sustained a leak in its engine room.

“All participants have been safely transferred to another vessel. Some will be reassigned to other ships, while others will be brought ashore,” the statement said.

According to Anadolu, the vessel was located in international waters between Crete, Cyprus and Egypt when it issued a distress call early Monday.

Turkish authorities, including the Turkish Red Crescent, coordinated the evacuation effort.

Semih Fener, the captain of one of the ships dispatched to assist, told Anadolu the incident was due to a technical malfunction, not a sinking.

“We picked up 12 people and distributed them to other ships. Four people will return home,” he said, adding that the evacuees would travel to their respective countries via Turkey.

The Turkish Red Crescent confirmed to AFP it had coordinated the evacuation.