Organisers of a Gaza-bound flotilla carrying aid and pro-Palestinian activists said late last night that another of their boats had been struck in a suspected drone attack off Tunisia's coast.
Aiming to break Israel's blockade of Gaza, the flotilla was due to resume its voyage after being delayed multiple times by weather conditions and other issues.
"Second night, second drone attack," said Melanie Schweizer, one of its coordinators.
The British-flagged Alma was docked in Tunisian waters yesterday, when it was "attacked" and "sustained fire damage on its top deck", the Global Sumud Flotilla said in a statement, adding no one was hurt.
AFP journalists at the scene saw a boat in the distance surrounded by Tunisian law enforcement vessels with flashing lights.
The incident comes a day after the activists said another of their boats was hit by a similar suspected UAV attack, but Tunisian authorities said "no drones" had been detected.
The activists said they would continue their "peaceful voyage" as planned, as the flotilla "presses forward with determination and resolve".
Two nights, two fires
Francesca Albanese, UN special rapporteur for the occupied Palestinian territories, posted video of the burning Alma and said it indicated a UAV attack.
"Video evidence suggests a drone - with no light so it could not be seen - dropped a device that set the deck of the Alma boat on fire," she wrote on social media.
The flotilla arrived in Tunisia at the weekend and was anchored off the coast of Sidi Bou Said, north of Tunis, when it reported the first incident.
Some members of the flotilla said they saw the drone, adding that the boat's bow caught fire immediately after.
But authorities dismissed reports of a drone strike as "completely unfounded", suggesting the fire may have been caused by a cigarette butt.
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Tunisian national guard spokesman Houcem Eddine Jebabli said "no drones have been detected" overnight.
Security footage posted by the flotilla organisers showed a burning mass falling from a distance onto the ship.
'Distract and derail'
The activists did not blame Israel for the suspected attacks in their statement but said "they come during intensified Israeli aggression on Palestinians in Gaza, and are an orchestrated attempt to distract and derail our mission".
The Israeli military did not respond to requests for comment.
The United Nations declared famine last month in parts of Gaza, warning that 500,000 people face "catastrophic" conditions.
Sumud means "resilience" in English, and the flotilla describes itself as an independent group not linked to any government or political party.
Among its high-profile participants is environmental activist Greta Thunberg.
