Israel-Gaza-Lebanon live updates: Israel kills 5 in central Beirut, officials say

Israeli Foreign Minister Gideon Saar on Tuesday published a letter sent to the president of the United Nations Security Council in which he called for "immediate action regarding the activity of the pro-Iranian militias in Iraq, whose territory is being used to attack Israel."

"The Iraqi government is responsible for everything that happens on its territory," Saar wrote, noting Israel's right to self-defense.

"I called on the Security Council to act urgently to make sure that the Iraqi government meets its obligations under international law and to make these attacks on Israel stop," Saar said.

Iran-backed Iraqi militias have been launching drone attacks into Israel from the east in support of Hamas in the Gaza Strip and Hezbollah in Lebanon, with whom Israeli forces have been engaged since Hamas' Oct. 7, 2023, attack into southern Israel.

-ABC News' Jordana Miller

The U.N. agency for Palestinian refugees, UNRWA, said Monday their aid convoy was "violently" looted over the weekend, one of the largest such cases of looting since the war began.

The 109-truck U.N. convoy was carrying food supplies to people in Gaza when it was looted on Saturday, UNRWA said.

"The vast majority of the trucks, 97 in total, were lost and drivers were forced at gunpoint to unload aid," UNRWA said in a statement.

UNRWA said the Israel Defense Forces made the convoy leave a day earlier than planned.

The IDF has not yet commented on this incident.

-ABC News' Will Gretsky

Israel damaged some of Iran's nuclear program in its October attack, Israeli Prime Minister Benjamin Netanyahu said Monday.

Iran's air defense, ballistic missile production and ability to produce "solid fuel" were impacted, Netanyahu said during remarks to Israel's parliament.

"There is a certain element of their nuclear program that was damaged in this attack," he said, though added that its ability to operate "has not yet been thwarted."

Netanyahu said Iran's nuclear threat must be dealt with.

"If we don't deal with the nuclear program, then all the other problems will come back and resurface, both in the axis, and in armaments, and in other things," Netanyahu said.

Netanyahu also said Israel is "currently talking about possible negotiations for a settlement" to be reached between Israel and Lebanon, but added, "Even if there is a cease-fire, no one says it will last."

-ABC News' Jordana Miller

U.S. envoy Amos Hochstein is on his way to Lebanon for talks on a cease-fire between Hezbollah and Israel, an official familiar with the plans confirmed to ABC News.

Hochstein left from the U.S. for Lebanon on Monday, the official said.

Israel is getting close to being ready to agree to the U.S.-backed cease-fire proposal, which is very similar to the proposal that was floated by the U.S. at the end of September. The U.S. needs to see how Hezbollah feels about this proposal, which is what Hochstein aims to do during his trip, according to the official.

-ABC News' Shannon K. Kingston