Tourists under attack?

Secretary of State Antony Blinken told CNN's State of the Union that the US is working to verify reports that “several” Americans were killed or are missing.

In neighboring Egypt, a policeman shot dead two Israeli tourists and an Egyptian at a tourist site in Alexandria, the Interior Ministry said. Egypt made peace with Israel decades ago, but anti-Israel sentiment runs high in the country, especially during bouts of Israeli-Palestinian violence.

The flare-up on Israel's northern border also threatened to draw into the battle Hezbollah, a fierce enemy of Israel's which is backed by Iran and estimated to have tens of thousands of rockets at its disposal.

Hezbollah fired dozens of rockets and shells on Sunday at three Israeli positions in a disputed area along the border and Israel's military fired back using armed drones. Two children were lightly wounded by broken glass on the Lebanese side, according to the nearby Marjayoun Hospital.