Follow NBC News' live coverage of Oct. 7 anniversary events, Israel-Iran tensions and conflict with Hamas in Gaza and Hezbollah in Lebanon.

Israel's Lebanon operation continues as leaders consider their response to Iran's long-range attack on Tuesday, in which hundreds of missiles were fired into the country, according to Danny Danon, Israel's ambassador to the United Nations.

Israel on Monday marked a year since Oct. 7, when Hamas militants led an attack on southern Israeli communities that killed around 1,200 people and took 230 hostages from Israel, almost 100 of whom are still held in Gaza.