Blasts kill nearly 100 at slain Iranian commander Soleimani's memorial

Two explosions killed nearly 100 people and wounded scores at a ceremony in Iran on Wednesday to commemorate commander Qassem Soleimani who was killed by a US drone in 2020, Iranian officials said, blaming unspecified "terrorists".

Iranian state television reported a first and then a second blast after 20 minutes during a crowded fourth-anniversary event at the cemetery where Soleimani is buried in the southeastern city of Kerman.

No one claimed responsibility for the blasts. A senior Biden administration official said in Washington that the blasts appeared to represent "a terrorist attack" of the type carried out in the past by IS militants.

Iranian President Ebrahim Raisi condemned the "heinous and inhumane crime", and Iran's top authority Supreme Leader Ayatollah Khamenei vowed revenge for the bloody twin bombings.

Several countries, including Russia and Turkey, condemned the attacks, and the UN Secretary-General called for those responsible to be held accountable.

Iranian Health Minister Bahram Eynollahi told state TV the death toll was 95, down from 103, and said 211 others were injured, making it the deadliest attack in the history of the Islamic Republic, which has faced similar incidents in the past from various groups.

Iran has in the past blamed Israel for attacks on individual people or places within its borders - claims which Israel has neither confirmed nor denied - but there was no indication of any involvement of a foreign state in the cemetery explosions.

The US has seen no indication Israel was behind the blasts, White House national security spokesperson John Kirby said.

An unnamed official told state news agency IRNA that "two explosive devices planted along the road leading to Kerman's Martyrs' Cemetery were detonated remotely by terrorists".

Iranian state media said the cemetery had been evacuated and closed until further notice. The government announced that Thursday would be a day of mourning.