Israeli Prime Minister Benjamin Netanyahu vowed revenge after a hospital was struck by an Iranian ballistic missile, as the world waited for news of whether President Donald Trump would commit U.S. forces to Israel's campaign against Iran's nuclear program.

Donald Trump posted an ominous warning for all nine million residents of Tehran to evacuate immediately. Here are the key developments on Tuesday morning: Israel's air campaign on the Iranian capital expanded on Tuesday morning The Israel Defense Forces claimed to have killed another top Iranian military commander People seen fleeing Tehran en masse,