Sirens sounded in central Israel on Wednesday due to projectile launches from Lebanon, the Israel Defense Forces said in a statement.

-ABC News' Jordana Miller

Experts warned the United Nations Security Council on Tuesday that famine is "occurring or imminent" in parts of northern Gaza.

Israel's U.N. Ambassador Danny Danon rejected the famine warning as "simply false" and said Israel is making additional efforts to improve the humanitarian situation in the Palestinian territory.

During the session, the U.S. Ambassador to the U.N. Linda Thomas-Greenfield said there must be "no forcible displacement, nor policy of starvation in Gaza" by Israel, warning such policies would have implications under U.S. and international law.

The session was held shortly after the U.S. said it would not restrict military aid to Israel despite concerns about the deteriorating humanitarian situation in Gaza after more than a year of war.

-ABC News' Will Gretsky and Joe Simonetti

The Hostages and Missing Families Forum authorized the publication Wednesday of a video released by Palestinian Islamic Jihad of hostage Alexander "Sasha" Troufanov -- the first video of a living captive for several months.

Troufanov, 29, was kidnapped from his parents' home in the border kibbutz of Nir Oz on Oct. 7, 2023. His mother Yelena, grandmother Irena and partner Sapir were also kidnapped, but released in a November 2023 prisoner swap deal. His father, Vitaly, was killed in the attack.

In the video released Wednesday, Troufanov said he and other surviving hostages were running out of food and basic hygiene products. Troufanov urged the Israeli public to continue pressing for a hostage release deal and said he feared being accidentally killed by the Israel Defence Forces.

PIJ released two videos of Troufanov in May.

The Hostages and Missing Families Forum said in a statement posted to social media, "It's inconceivable and incomprehensible that almost a year has passed since the last hostage release deal."

"The hostages have no time left -- a deal for their release is the only way to bring them all back to us: the living for rehabilitation and those who were murdered for proper burial."

-ABC News' Joe Simonetti

The Israel Defense Forces ordered residents of several areas in the southern Beirut suburbs to flee their homes on Wednesday morning ahead of an imminent resumption of airstrikes.

The target locations were in the Hezbollah stronghold suburb of Dahiya, which has been the focus of Israeli airstrikes since September.

The Wednesday morning evacuation orders came after a night of heavy bombardment in the area, which the IDF claimed targeted "Hezbollah weapons storage facilities and command centers."

Lebanese authorities say Israeli strikes have killed more than 3,200 people since Oct. 8, 2023. Around a quarter of Lebanon's population -- some 1.2 million people -- have been forced from their homes by Israel's operation, per United Nations figures.