According to the Marine Executive, the boat “corresponds to a UK-registered 18-meter sailing vessel named Barcarole.”The vessel left port on Sunday on what is thought to be an estimated 2,000-kilometer trip.

Thunberg and 11 other activists are on board a ship headed to Gaza with aid supplies, but the IDF has said it does not intend to allow the ship to dock.

A vessel organized by an international activist coalition to deliver humanitarian aid to Gaza has rescued several migrants from the sea near Crete.