Narges Mohammadi, a prominent human rights activist, was taken to a hospital after collapsing following a heart problem in prison.
Jurors found the man guilty of conspiracy to support the terrorist group that took credit for a horrific bombing, but deadlocked on whether he was responsible for the attack itself.
Despite a cease-fire, Israel and Hezbollah have been trading attacks almost daily.
Iran’s foreign minister has already arrived in the country, state media reported. He was believed to be carrying a written response to a U.S. proposal to end the war.
Israel says the truce with Iran does not cover Lebanon. But Tehran says it does, and it has threatened to pull out of peace talks unless the bombing stops.
The Mediterranean nation is reeling after Israel struck more than 100 targets in 10 minutes, heightening fears that the tenuous cease-fire with Iran could unravel.
Members of the United Nations Security Council condemned deadly attacks on U.N. peacekeepers in south Lebanon and called for de-escalation between Israel and Hezbollah.
The deaths came a day after the U.N. secretary-general, António Guterres, condemned the killing of another peacekeeper.
Investigators said the government of President Ahmed al-Sharaa had done little to address the extrajudicial killings and torture of Druse civilians in July 2025.
A 4-year-old, a professor and an aid worker are among those killed in separate airstrikes as Israel pummels towns and cities, saying it is targeting Hezbollah operatives.