A Global Sumud flotilla vessel floats in the waters as Tunisian Maritime National Guard boats conduct an inspection in Sidi Bou Said, Tunisia, Sept. 9, 2025. Photo: REUTERS/Jihed Abidellaoui

Tunisian authorities have rejected as false a claim by the Global Sumud Flotilla (GSF) for Gaza that one of its main boats was struck on Tuesday by a drone at a port in Tunisia.

Tunisia’s interior ministry said that reports of a drone hitting a boat at its Sidi Bou Said port “have no basis in truth,” and that a fire broke out on the vessel itself. The flotilla had said that all six passengers and crew were safe despite the alleged strike.

The Portuguese-flagged boat, carrying the flotilla‘s steering committee, sustained fire damage to its main deck and below-deck storage, the GSF said in a statement.

In tandem with the denial from Tunisian authorities, video circulated on social media apparently showing that the fire was caused by a crew member misfiring a flare that landed back on the boat, not by a drone.

BREAKING: New footage from Greta’s boat shows a crew member misfiring a flare, which lands back on the boat.

These people lie for sport. There was never any drone. pic.twitter.com/GSSSvjy23I

— Eyal Yakoby (@EYakoby) September 9, 2025

The flotilla is an international initiative seeking to break Israel’s naval blockade and deliver humanitarian aid to Gaza using civilian boats supported by delegations from 44 countries, including Swedish activist Greta Thunberg and Portuguese left-wing politician Mariana Mortagua.

A video posted by the GSF on X purportedly showed the moment “the Family Boat was struck from above,” capturing a luminous flying object hitting the vessel with smoke rising soon after.

After the incident, dozens of people gathered outside the Sidi Bou Said port, where the flotilla‘s boats were located at the time, waving Palestinian flags and chanting “Free Palestine,” a Reuters witness said.

Israel has imposed a naval blockade on the coastal enclave since Hamas took control of Gaza in 2007, saying it aims to stop weapons from reaching the internationally desgnated terrorist group.

The blockade has remained in place through the current war, which began when Hamas attacked southern Israel in October 2023, killing 1,200 and taking about 250 hostages.

In June, Israeli naval forces boarded and seized a British-flagged yacht carrying Thunberg, among others. Israel dismissed the aid ship as a propaganda stunt in support of Hamas.

The GSF also said an investigation into the drone attack was underway and its results would be released once available.

“Acts of aggression aimed at intimidating and derailing our mission will not deter us. Our peaceful mission to break the siege on Gaza and stand in solidarity with its people continues with determination and resolve,” the GSF said.

The United Nations’ Special Rapporteur on the occupied Palestinian territories, Francesca Albanese, who was at the port, told Reuters: “We do not know who carried out the attack, but we would not be surprised if it was Israel. If confirmed, it is an attack against Tunisian sovereignty.”

Albanese has been widely accused by critics of using her position to denigrate Israel and justify Hamas’s use of terrorism against Israelis.

There was no immediate comment from the Israeli side.