TEL AVIV, Israel (AP) — Drones attacked a vessel carrying aid to Gaza on Friday in international waters off Malta, the group organizing the shipment said, in the latest confrontation over efforts to send assistance to the Palestinian territory devastated by nearly 19 months of war.

A nearby tugboat responded to a distress call from the Conscience, which authorities said experienced a fire that was brought under control. The vessel was carrying 12 crew members and four civilians, the Maltese government said, adding that those aboard refused to leave the ship. The group was safe and no serious injuries were reported, it said.

The Freedom Flotilla Coalition accused Israel of attacking its ship. The group did not provide evidence for that claim or to show that the fire was caused by drones, but in a video it shared an explosion could be heard. Another video showed a fire blazing.

The Israeli army did not respond to a request for comment. Israel has cut off Gaza from all imports, including food and medicine, since the beginning of March, leading to what is believed to be the worst humanitarian crisis in the war with Hamas, the Palestinian militant group.

Stranded in international waters

Video from aboard the Conscience appeared to show at least two large holes in the deck, with thick smoke surrounding the ship. The person recording the footage said the vessel had been hit twice and was on fire about 14 miles from port in Malta. The video was provided by Codepink, a grassroots peace and social justice movement.

The ship’s generator was badly damaged and will need to be repaired before continuing, Charlie Andreasson, who has been involved with the Freedom Flotilla for more than a decade, told The Associated Press. He said some crew members suffered minor injuries while putting out the fire.

The ship appears to be stranded in international waters, said Tighe Barry, a Codepink member who was among a group of activists who took speedboats to the Conscience after the attack. The boats were turned away by Maltese authorities, he said, but one person made it aboard and spoke to the captain.

Barry said the nation of Palau revoked its flag from the Conscience prior to the attack, and authorities in Malta, Greece and Turkey have threatened to confiscate the ship if it comes to port. Barry said the ship was loaded with medicine and food supplies.

“To get a new flag will take months, so they’re just stuck out there,” Barry said of the crew.

A message from the ship’s captain relayed by Barry said the vessel was trying to re-enter Maltese territory for fear of a second attack, but a military vessel was warning it away. “Huge risk to life. Please appeal for assistance,” the captain’s message said.

Two explosions and a fire

Israel says the blockade is an attempt to pressure Hamas to release hostages it took during the Oct. 7, 2023, attack that triggered the conflict. Hamas-led militants assaulted southern Israel that day, killing some 1,200 people, mostly civilians, and abducting 251. Hamas is still holding 59 hostages, 24 of whom are believed to be alive.

In response, Israel launched an offensive that has killed over 52,000 Palestinians, mostly women and children, according to Gaza’s Health Ministry, which does not distinguish between fighters and civilians. Israel’s bombardment and ground operations have destroyed vast areas of the territory and left most of its population homeless.

When an aid flotilla attempted to break a blockade of Gaza in 2010, Israeli forces stormed a Turkish ship, the Mavi Marmara, killing nine people on board.

On Friday, the Conscience was hit about 16 miles (26 kilometers) from Malta, according to the Freedom Flotilla.

Photos provided by the Cypriot authorities showed the ship with damage to its side. No one aboard the vessel could immediately be reached for comment.

Earlier the group said the strike appeared to have targeted the ship’s generator, causing a “substantial breach in the hull” and leaving it without power.

Ship sailed from Tunisia on route to Gaza

According to the ship-monitoring website Marine Traffic, the Conscience left the Tunisian port of Bizerte on Tuesday and arrived Thursday morning in the area where it reported being attacked. The organizers said the ship was hit Friday, just after midnight.

Volunteers who had traveled to Malta were meant to board the ship to go to Gaza, the group said. Andreasson said climate activist Greta Thunberg was supposed to have participated. The organization said Thunberg did not board and was safe.

About two dozen volunteers took smaller boats to the Conscience to assess the damage after the attack, said Medea Benjamin, co-founder of Codepink. Benjamin said the ship’s crew are from Turkey and Azerbaijan.

Turkey condemned the attack and pledged to hold the perpetrators accountable.

“We condemn in the strongest terms this attack on a civilian ship, which threatens freedom of navigation and maritime security in international waters,” Turkish Foreign Ministry Spokesman Oncu Keceli said in a statement posted on the X social media platform.

The attack happened as aid groups have warned that the humanitarian response in Gaza is on the verge of collapse.

The International Committee of the Red Cross said Friday that it will not have access to food, medicine and life-saving supplies needed for many of its Gaza programs if aid deliveries don’t resume immediately.

Programs at risk include “common kitchens” that often give residents the only meal they receive each day and could be forced to halt operations in a few weeks, the ICRC said.

“Aid must be allowed to enter Gaza. Hostages must be released. Civilians must be protected,” the committee said. “Without immediate action, Gaza will descend further into chaos that humanitarian efforts will not be able to mitigate.”

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Brito contributed from Barcelona, Spain. Associated Press writers Tia Goldenberg in Tel Aviv, Israel; Giada Zampano in Rome; Kevin Schembri Orland in St. Julian’s, Malta; Colleen Barry in Soave, Italy; Elena Becatoros and Julia Frankel in Jerusalem; Jamey Keaten in Geneva; Menelaos Hadjicostis in Nicosia, Cyprus; Jon Gambrell in Dubai; and Collin Binkley in Washington contributed to this report.

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