IRANIAN authorities have said there was a “failure to observe safety principles” at the port of Bandar Abbas, where an explosion Saturday killed dozens of people, but testing is required to determine the causes of the blast.
CNN reported, eyewitness accounts and video indicate chemicals in an area of shipping containers caught fire, setting off a much larger explosion. The death toll has spiked sharply, with one official telling Iranian state media on Monday that at least 70 have died.
At least 1,000 people were reported injured, according to the Associated Press, citing Iranian state TV. Of those wounded, 190 remain in hospital, said Pir Hossein Kolivand, head of Iran’s Red Crescent society.
One surveillance video distributed by the Fars news agency shows a small fire beginning among containers, with a number of workers moving away from the scene, before a huge explosion ends the video feed.
A committee investigating the port explosion released a statement Monday saying that, prior to the blast there had been a “failure to observe safety principles,” according to state-affiliated outlet Mehr News.
“Determining the definitive cause of this incident requires a complete and comprehensive investigation of its various aspects, which, due to expert requirements, requires technical and laboratory processes,” the statement continued.
The statement also referred to “discrepancies” in statement given to the committee, but did not elaborate on what these might be or their source.
CNN has previously reported that hundreds of tons of a critical chemical for fueling Iran’s ballistic missile program arrived at the port in February. Another shipment is reported to have arrived in March.
Interior Minister Eskandar Momeni said Monday that authorities “have been made aware of some shortcomings at the port.”
“Safety precautions and passive defenses were not implemented or taken seriously at the port,” he was cited as saying by semi-official Tasnim news, adding that the fire is under control “but there are certain containers that just need to burn off, but they are controlled and monitored.”
Some people had been summoned as part of the investigation, he said.
The state-run Islamic Republic News Agency quoted an official as saying the explosion was likely set off by containers of chemicals, but did not identify the chemicals. The agency said late Saturday that the Customs Administration of Iran blamed a “stockpile of hazardous goods and chemical materials stored in the port area” for the blast.
Iran’s national oil company said the explosion at the port was “not related to refineries, fuel tanks, or oil pipelines” in the area.
Iranian officials have denied that any military material was held at the port. The spokesman for the national security and foreign policy committee of the Iranian parliament, Ebrahim Rezaei, said in a post on X Sunday that according to initial reports the explosion had “nothing to do with Iran’s defense sector.”
Iranian President Masoud Pezeshkian arrived in Bandar Abbas on Sunday afternoon to investigate the situation and oversee relief efforts, according to state media. The president also met with those injured in yesterday’s blast.
“We have to find out why it happened,” Pezeshkian said at a meeting with officials aired by Iranian state television.
The region’s governor, Mohammad Ashouri, declared three days of mourning.
Reports of chemical fuel ‘for missiles’
The blast comes at a time of high tensions in the Middle East and ongoing talks between Iran and the United States over Tehran’s nuclear programme, but no senior figure in Iran has suggested the blast was an attack.
Videos and images from the scene, some of which have been geolocated by CNN, show orange-brown smoke rising from part of the port where containers were stacked. Such a color would suggest a chemical such as sodium or ammonia was involved.
The New York Times reported Sunday that a person “with ties to Iran’s Islamic Revolutionary Guard Corps said that what exploded was sodium perchlorate, a major ingredient in solid fuel for missiles. The person spoke on condition of anonymity to discuss security matters.”
CNN cannot confirm what was being stored in the area at the time of the explosion and it is unclear why such chemicals would be kept at port for so long.
Iranian President Masoud Pezeshkian surveys the damage of the Shahid Rajaee port explosion in Bandar Abbas, Iran, on Sunday. Authorities were tight-lipped over the cause of the blast, which killed 40 people.
Other experts suggested more mundane chemicals might explain the huge blast.
“This bears the hallmarks of an ammonium nitrate explosion. Ammonium nitrate is a commodity chemical that is widely used as a fertilizer and as an industrial explosive, but it is well known that poor storage can significantly raise the risk of an explosion in the event of a fire.” said Andrea Sella, a professor of chemistry at University College London.
“Material ignites and burns fiercely less than a minute later followed seconds later by the devastating detonation. It is the supersonic pressure wave from that that would have shattered windows.”
But Dan Kaszeta, a chemical weapons expert who reviewed videos from the scene, said reports of sodium perchlorate “could provide an explanation for how the explosion started, as perchlorates are used in materials like rocket propellant and fireworks.”
“It is difficult for ammonium nitrate to detonate on its own without other chemicals having been part of a reaction.” he told CNN. - April 29. 2025
