The Philosophers Atrium

The explosion caused fire damage to the Portuguese-flagged boat’s main deck and below-deck storage, but all six passengers and crew members are safe, GSF said in a statement.

With around 20 boats and participants from 44 countries, including activist Greta Thunberg, the group is the largest civilian maritime attempt to break the Israeli blockade of the Palestinian territory.

www.nbcnews.com

Tunisian authorities said the explosion came from inside the vessel, rejecting the claim it was hit off the country’s coast.