Israel-Gaza-Lebanon live updates: American hostage's father makes plea to Biden and Trump

In an address to thousands of Basij militia members on Monday, Iranian Supreme Leader Ayatollah Ali Khamenei said the International Criminal Court arrest warrants issued last week for Israeli Prime Minister Benjamin Netanyahu and former Defense Minister Yoav Gallant were insufficient.

"What [they have] done in Gaza and Lebanon is not a victory, it is a war crime," Khamenei said.

"Now they have issued arrest warrants for them; this is not enough," he added of the ICC decision. "A death sentence must be issued for Netanyahu and the criminal leaders of this regime."

The ICC also issued an arrest warrant for Hamas military commander Mohammed Deif, who the Israel Defense Forces claimed to have killed in an airstrike in Gaza in July.

Netanyahu's office expressed its "disgust" at the decision and dismissed the ICC warrant as "absurd."

-ABC News' Somayeh Malekian and Joe Simonetti

The Israel Defense Forces said its warplanes "conducted intelligence-based strikes on several Hezbollah command centers" in southern Beirut on Monday.

The strikes again focused on the Dahiya area in the south of the Lebanese capital, which is known as a Hezbollah stronghold.

Monday's bombings followed an intense day of strikes on Sunday, as diplomats continued to push for a cease-fire agreement to end the fighting between Israel and Hezbollah.

-ABC News' Jordana Miller and Joe Simonetti

The United Arab Emirates' Interior Ministry said Monday it arrested three Uzbek nationals suspected of the kidnapping and killing of Moldovan-Israeli rabbi Zvi Kogan.

Kogan, 28, was an ultra-Orthodox rabbi who went missing on Nov. 21. He managed a kosher grocery store in Dubai.

The ministry identified the three detained men as Olimpi Tohirovic, 28, Mahmoud John Abdul Rahim, 28, and Azizi Kamilovic, 33. It did not say whether charges had been filed and did not suggest a motive.

Israeli leaders have framed the killing as an antisemitic terror operation. Prime Minister Benjamin Netanyahu said Sunday his nation would "act by all means" to "bring justice to the murderers and their senders."

-ABC News' Joe Simonetti

Israel Defense Forces spokesperson Avichay Adraee said on Monday morning that Israeli warplanes would soon begin new airstrikes in Beirut, following 24 hours of intense bombing of the city's southern suburbs.

Adraee ordered residents of the Haret Hreik area of the southern Dahiya suburbs -- known as a Hezbollah stronghold -- to flee their homes and stay at least 500 meters from target buildings identified on an IDF map.

-ABC News' Jordana Miller