The Global Sumud Flotilla claims one of its boats has been attacked by a drone at a Tunisian port, in what it says is the second such strike in as many days.
The GSF, which is seeking to break Israel's naval blockade and deliver humanitarian aid to war-torn Gaza using civilian boats, said all passengers and crew were unharmed.
Footage from the group on Wednesday morning showed what it said was a projectile striking the deck and sparking a fire. It later showed pictures of what appeared to be a military incendiary device.
GSF reported the first attack on Tuesday, saying one of its vessels had been struck by a drone in Tunisian waters at the Sidi Bou Said port, reports Tunisian authorities said were false.
A Tunisian Coast Guard spokesperson did not respond to a call from the Reuters news agency on Wednesday. One of the flotilla's organisers accused Israel of carrying out the attack.
“Israel continues to breach international law and terrorise us. We will sail to break the blockade on Gaza no matter what they do,” said Saif Abukeshek, a member of the GSF steering committee.
The Israeli military did not immediately respond to a request for comment.
The flotilla posted a video on Instagram of the alleged attack, showing a luminous object hitting the boat and fire erupting on board.
Following the strike, hundreds gathered near the port, where the flotilla's boats were located at the time of the incident, waving Palestinian flags and chanting slogans against Israel and the United States.
The group said that the British-flagged Alma sustained fire damage to its top deck and an investigation was under way.








