Israel-Gaza-Lebanon updates: Netanyahu calls UN troops Hezbollah 'human shields'

The State Department said Monday it organized a flight to carry Americans out of Lebanon on Monday.

The flight carried approximately 150 American citizens, legal permanent residents and their family members from Beirut to Istanbul, the State Department said.

The department said earlier Monday that it had also organized two flights over the weekend carrying a combined 235 passengers from Beirut to Istanbul.

Monday's flight brings the total number of U.S. charter flights from Lebanon over the past week to eight, with 900 combined passengers, according to the State Department.

The State Department said it has additionally blocked off 868 seats for Americans on commercial flights, with a significant share of them filled.

Officials from the U.S. Embassy in Beirut are now in contact with approximately 8,500 people inside Lebanon who have asked for more information about departing the country.

State Department spokesperson Matthew Miller said Monday that does not mean that all intend to leave, though the department has assessed that there is still significant demand for additional government charter flights among Americans in Lebanon.

-ABC News' Shannon K. Kingston

In a warning to vacationers, beachgoers and boaters, the Israel Defense Forces said they will soon operate against "Hezbollah maritime targets" south of the Awali River line.

"For your safety, refrain from being in the sea or on the beach from now until further notice. Being on the beach and boat movements in the area of ​​the Awali River line southward pose a danger to your life," the IDF said.

President Joe Biden and first lady Jill Biden joined a memorial candle lighting held Monday in the Blue Room of the White House in remembrance of the victims of the Oct. 7 attack.

Rabbi Aaron Alexander recited in Hebrew "El Malei Rachamim" ("God Full of Mercy"), a traditional Jewish prayer for those who have died, then recited it in English.

Biden then lit the yahrzeit candle before observing a moment of silence. Biden made the sign of the cross after a few moments.

Alexander is a family friend of the Goldberg-Polin family. American-Israeli Hersh Goldberg-Polin, 23, was taken hostage by Hamas on Oct. 7 at the Nova Music Festival. His body was recovered by Israeli forces in late August.

Biden also spoke with Israeli President Isaac Herzog earlier Monday to express his "deepest condolences" to Israelis and families of the Oct. 7 attack, the White House said.

-ABC News' Justin Ryan Gomez

Air alert sirens sounded across central Israel on Monday due to a missile launch from Yemen, the Israel Defense Forces said.

"The air force successfully intercepted a surface-to-surface missile launched from Yemen," the force wrote on X.

Iran-aligned Houthi rebels in Yemen have repeatedly targeted Israel using missiles and drones. Israel has launched airstrikes on Houthi military and infrastructure sites in response.