Israel's defense minister has vowed to prevent an aid boat carrying Greta Thunberg and other activists from reaching the Gaza Strip.Defense Minister Israel Katz said Sunday that Israel wouldn't allow anyone to break its naval blockade of the Palestinian territory,

There are a number of things that could cause the ship to turn around, like lack of food and water or problems with the engine.

The almost 20 months of war has torn Gaza apart, often displacing residents multiple times and killing more than 54,000 people, according to the Hamas-run Health Ministry. A U.S.-brokered ceasefire agreed in January collapsed in March as Israel enforced a blockade on all humanitarian aid into the strip.