Massive explosion rocks Iran as four are killed and more than 500 injured with blast blamed on shipment of ballistic missile fuel

Four people have died and hundreds more are injured in Iran after a massive explosion rocked a port this morning. 

The blast at the Shahid Rajaei port happened as Iran and the US met Saturday in Oman for the third round of negotiations over Tehran’s rapidly advancing nuclear program.

While no one in Iran outright suggested that the explosion came from an attack, even Iranian Foreign Minister Abbas Araghchi, who is leading the talks, on Wednesday acknowledged that ‘our security services are on high alert given past instances of attempted sabotage and assassination operations designed to provoke a legitimate response.’

For hours, authorities in Iran offered no clear explanation for what caused the blast at the port, which is just outside of Bandar Abbas, though they did deny that the explosion had anything to do with the country’s oil industry.

However, the port took in a shipment of ‘sodium perchlorate rocket fuel’ in March, the private security firm Ambrey said. 

The fuel is part of a shipment from China by two vessels to Iran first reported in January by the Financial Times. 

The fuel was going to be used to replenish Iran’s missile stocks, which had been depleted by its direct attacks on Israel during the war with Hamas in the Gaza Strip.

‘The fire was reportedly the result of improper handling of a shipment of solid fuel intended for use in Iranian ballistic missiles,’ Ambrey said.

Smoke rises after a massive explosion that ripped through the Shahid Rajaee Port as officials conduct operations

More than 500 people have so far been injured in the massive explosion

People walk after an explosion at the Shahid Rajaee port in Bandar Abbas

Ship-tracking data analyzed by The Associated Press put one of the vessels believed to be carrying the chemical in the vicinity in March, as Ambrey said. 

Iran hasn’t acknowledged taking the shipment. The Iranian mission to the United Nations didn’t immediately respond to a request for comment on Saturday.

It’s unclear why Iran wouldn’t have moved the chemicals from the port, particularly after the Beirut port blast in 2020. 

That explosion, caused by the ignition of hundreds of tons of highly explosive ammonium nitrate, killed more than 200 people and injured more than 6,000 others.

 However, Israel did target Iranian missile sites where Tehran uses industrial mixers to create solid fuel.

Social media footage of the explosion on Saturday at Shahid Rajaei saw reddish-hued smoke rising from the fire just before the detonation. That suggests a chemical compound being involved in the blast.

Shahid Rajaei has been a target before. A 2020 cyberattack attributed to Israel targeted the port.

Social media videos showed black billowing smoke after the blast. 

Other clips saw reddish-hued smoke rising from the fire just before the detonation. That suggests a chemical compound being involved in the blast.

Others showed glass blown out of buildings kilometers, or miles, away from the epicenter of the explosion. 

In this photo provided by Islamic Republic News Agency, IRNA, men carry an injured man after a massive explosion near the southern port city of Bandar Abbas, Iran

Four people are said to have been killed in the blast 

A helicopter extinguishes fire following the explosion on Saturday

Footage showed people fleeing from the explosion 

In this photo provided by Islamic Republic News Agency, IRNA, two men on a motorcycle drive through debris 

People were reportedly seen attempting to evacuate the site

State media footage showed the injured crowding into at least one hospital, with ambulances arriving as medics rushed one person by on a stretcher.

Mehrdad Hasanzadeh, a provincial disaster management official, told Iranian state television that first responders were trying to reach the area while others were attempting to evacuate the site.

Hasanzadeh said that the blast came from containers at Shahid Rajaei port in the city, without elaborating. 

State television also reported that there had been a building collapse caused by the explosion, though no further details were offered.

IRNA news agency said that the Customs Administration of Iran blamed a ‘stockpile of hazardous goods and chemical materials stored in the port area’ for the blast, without elaborating. 

The Interior Ministry said that it launched an investigation into the blast.

Shahid Rajaei port in Hormozgan province is about 1,050 kilometers (650 miles) southeast of Iran’s capital, Tehran, on the Strait of Hormuz, the narrow mouth of the Persian Gulf through which 20% of all oil traded passes.

Talks between the US and Iran today over Tehran’s advancing nuclear program ran for several hours today in Muscat. 

The Interior Ministry has launched an investigation into the blast.

Shahid Rajaei port in Hormozgan province is about 1,050 kilometers (650 miles) southeast of Iran’s capital, Tehran

IRNA news agency said that the Customs Administration of Iran blamed a ‘stockpile of hazardous goods and chemical materials stored in the port area’ for the blast, without elaborating

This image grab taken from footage released by the state television Islamic Republic of Iran Broadcasting News (IRIBNEWS) on April 26, 2025 shows people walking away as smoke billows following an explosion at the Shahid Rajaee port dock

The blast at the Shahid Rajaei port happened as Iran and the US met Saturday in Oman for the third round of negotiations over Tehran’s rapidly advancing nuclear program. This handout picture provided by the Iranian Foreign Ministry shows Iran’s Foreign Minister Abbas Araghchi (R) descending the stairs of his plane upon his arrival in Muscat on April 25, 2025

Iranian Foreign Minister Abbas Araghchi speaks with an unidentified Omani official upon his arrival at Muscat ahead of negotiations with the U.S., in Muscat, Oman, April 25, 2025

A person close to Steve Witkoff, the US special envoy to the Middle East, acknowledged that the meeting had started and later ended. 

The source spoke on condition of anonymity to discuss the closed-door talks. Iranian state television also reported their conclusion. 

However, neither Iranian Foreign Minister Abbas Araghchi nor Witkoff offered any immediate specifics or details on the talks that they’ll lead. 

But Omani Foreign Minister Badr al-Busaidi, who has mediated the two previous round of talks in Muscat and Rome, offered a positive note at the end of Saturday’s negotiations.

Iran and the U.S. ‘identified a shared aspiration to reach agreement based on mutual respect and enduring commitments,’ al-Busaidi posted on X. 

‘Core principles, objectives and technical concerns were all addressed. Talks will continue next week with a further high level meeting provisionally scheduled for May 3.’

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