Climate activist Greta Thunberg and "Game of Thrones" actor Liam Cunningham join aid ship sailing to Gaza

Climate campaigner Greta Thunberg and 11 other activists set sail for the Gaza Strip on Sunday afternoon, aboard a ship carrying aid. The mission is aimed at "breaking Israel's siege" of the devastated territory, organizers said. 

"Game of Thrones" actor Liam Cunningham and Rima Hassan, a French member of the European Parliament who is of Palestinian descent, are also among the crew. Hassan has been barred from entering Israel due to her active opposition to the Israeli assault on Gaza.

The sailing boat Madleen — operated by activist group Freedom Flotilla Coalition — departed from the Sicilian port of Catania, in southern Italy.