Israel's limited ground incursion into Lebanon could be imminent, two more U.S. officials have told ABC News. One of the officials said Israel notified the U.S. of its intentions. Deputy Pentagon press secretary Sabrina Singh would not confirm as much when repeatedly asked Monday,

Hashen Safieddine, widely expected to succeed slain Hassan Nasrallah as leader of Hezbollah, has been unreachable since an Israeli air strike on Friday, three Lebanese security sources told Reuters.