Iranians mark day of mourning after bomb attacks killed at least 84 people and injured more than 280.

Iranians celebrated a day of mourning Double bombings In the city of Kerman, scores of people were killed and injured at a monument to top Iranian general Qassem Soleimani four years after his assassination, raising tensions in the region.

According to the state news agency IRNA, at least 84 people were killed in the explosions, Interior Minister Ahmad Vahidi said on Thursday.

An earlier death toll of 103 was revised downward twice after officials discovered that some names on the casualty list had been repeated and because bodies had been dismembered and counted “several times,” said Jafar Miadfar, the head of Iran’s emergency services.

More than 280 people were injured in Wednesday’s attacks, 195 of whom are still in hospital.

There was no claim of responsibility for what appeared to be happening deadliest attack to target Iran since the Islamic revolution in 1979.

The explosions occurred minutes apart and rocked Kerman, about 820 km (510 miles) southeast of the capital Tehran. The second explosion hurled shrapnel into a screaming crowd as they fled the first blast.

Reporting from Tehran, Al Jazeera’s Ali Hashem said the mood in the country was confused and many had questions about what exactly happened.

“There is no clear answer … whether it was a suicide attack or whether the bombs were planted,” Hashem said Thursday. “Of course, the main suspects here in Iran for Iranian officials are the United States and Israel.”

The commemoration marked the fourth anniversary of the killing of Soleimani, head of the elite Quds Force of the Islamic Revolutionary Guard Corps (IRGC), in a US drone strike in Iraq ordered by then-President Donald Trump. The explosions occurred near his gravesite as long lines of people gathered for the event.

Iranian President Ebrahim Raisi, who canceled his planned trip to Turkey, declared Thursday a national day of mourning to pay respect to those killed in the bombings.

US State Department spokesman Matthew Miller said American officials had “no reason” to believe Israel was involved in the attack.

Iran’s Supreme Leader Ayatollah Ali Khamenei blamed the attack on the country’s “evil and criminal enemies” and promised a “tough response.”

“These hard-hearted criminals could not stand the love and enthusiasm of the people who visited the shrine of their great commander Qassem Soleimani,” Khamenei said in a statement.

“Let them know that the soldiers of…Soleimani will not tolerate their wickedness and crimes.”

The United Nations, the European Union and several countries including China, Saudi Arabia, Jordan, Germany and Iraq condemned the bombings.

The attacks came a day after the murder of Saleh al-Arouria deputy leader of the Palestinian armed group Hamas, an ally of Iran, in a drone strike in the Lebanese capital Beirut, raising fears of further escalation in the region after the Israeli attack began War in Gaza on October 7th.