The authorities moved to suppress shows of defiance at ceremonies commemorating 40 days since the death of protesters.
In the aftermath of another wave of antigovernment unrest, Iran is gripped by a mood of collective grief and uncertainty about the future.
Gaza officials said the Israeli airstrikes killed at least 21 Palestinians. Israel said one of its soldiers was critically wounded in the attack by Palestinian gunmen.
Deadly blasts, including one that may have been caused by a gas leak, raised anxiety in the country. “Society is waiting for war,” one Iranian said.
Antigovernment unrest that began two weeks ago has intensified in recent days, as has violence.
Haitham Salem spent 11 months held by Israel without charge and said he endured beatings and abuse. He was released as part of the cease-fire deal, longing to return to his family.
Since the cease-fire took effect, Israel says it has targeted only militants. But death can come for Gazans while on a family outing or sleeping in a tent.
The internationally recognized government of Libya confirmed the deaths of Lt. Gen. Mohamed Ali Ahmed al-Haddad, the army chief of staff, and other officers flying home after a meeting in Turkey.
The internationally recognized government of Libya confirmed the deaths of Lt. Gen. Mohamed Ali Ahmed al-Haddad, the army chief of general staff, and other officers flying home after a meeting in Turkey.
Officials said Israel helped arm and back Yasser Abu Shabab’s Popular Forces, part of a strategy against Hamas, before a local clan killed him this week.