Israelis halted activity and came to a stand-still as a two-minute siren commemorating Holocaust victims sounded on Tuesday (April 14).

The siren marks the start of Israel’s Memorial Day for the six million Jews killed by the Nazis during World War II. 

In a pre-recorded message aired on Monday (April 13), Israeli Prime Minister Benjamin Netanyahu said he had promised not to allow Iran to become a nuclear state or permit a second Holocaust.

Also on Monday, a ceasefire that halted six weeks of U.S. and Israeli airstrikes on Iran appeared in jeopardy, with only a week remaining.

Production: Eli Berlzon, Dedi Hayun, Rami Amichay, Napat Wesshasartar/Reuters