The Iranian president said that Nagorno-Karabakh is an inseparable part of Azerbaijan's territory during a meeting with his counterpart, supporting the country's rights over the disputed region as the two nations attempt to mend ties.
"We believe that the rights of the people of Azerbaijan must be respected, and Karabakh must belong to the country of Azerbaijan. Karabakh is an inseparable part of the soil of Azerbaijan, and we respect that," Masoud Pezeshkian said during a meeting with Azerbaijani officials in Baku on Monday.
Azerbaijani President Ilham Aliyev officially welcomed Pezeshkian at the Zagulba Presidential Palace on Monday afternoon, followed by a private meeting between the two leaders and a joint session of their high-ranking delegations.
Tensions between Tehran and Baku have run high for years, largely due to Baku's close ties with Iran's nemesis Israel and a January 2023 attack on Azerbaijan's embassy in Tehran.
Last week, Pezeshkian expressed hopes for a rapid improvement in relations and cooperation between the two countries as part of a broader effort to mend ties.
Iran and Azerbaijan held two-day joint naval exercises in the Caspian Sea in November, in moves towards rapprochement.
Pezeshkian’s remarks come a month after Iran welcomed a peace agreement between Azerbaijan and Armenia.
The Nagorno-Karabakh conflict, a decades-long dispute rooted in the aftermath of the Soviet Union's dissolution, saw a significant development in March when both Azerbaijan and Armenia announced an agreement on the text of a peace treaty.
Nagorno-Karabakh, internationally recognized as part of Azerbaijan but historically with a majority ethnic Armenian population, had long been a flashpoint between the two South Caucasus nations.
Iran, sharing a northern border with both countries, has consistently underscored its interest in regional stability, particularly along its 44-kilometer frontier with Azerbaijan.
The explosion on Saturday which has devastated Rajaei Port, the country's largest container port near Bandar Abbas, has halted 57% of the country's nominal loading and unloading capacity.
Although Iranian customs officials announced that some customs and transit activities have resumed, full port operations are still suspended pending the complete extinguishment of the fire.
Cleanup efforts are underway, with Interior Minister Eskandar Momeni saying that about 80% of firefighting operations had been completed by Sunday afternoon.
At least 28 people have been killed and more than 1,000 injured.
The Ministry of Health has declared a state of emergency in Bandar Abbas, citing serious air pollution and the risk of chemical contamination. Authorities have also shut down all schools, universities, and government offices in the city as a precaution.
Rajaei Port processes about 85% of Iran’s container cargo and 52% of its oil product trade, according to the Iranian Ports and Maritime Organization.
Over the past Iranian year (March 2024 - March 2025), the port handled over 81 million tons of goods — over half of Iran’s total maritime cargo traffic — and $29 billion of Iran’s $130 billion foreign trade.
In the container sector, Shahid Rajaee handles a dominant 77% of the country's nominal container capacity, equivalent to 6.65 million TEUs (twenty-foot equivalent units), out of 11 active container ports. The next largest, Bushehr, has a capacity of just 550,000 TEUs.
A rough estimation suggests that each day of disruption at the port potentially halts the movement of an estimated 221,000 tons of various goods, including 61,000 tons of containerized cargo and 75,000 tons of oil products.
The cause of the explosion remains under investigation. A source with ties to Iran’s Islamic Revolutionary Guard Corps told the New York Times that the blast was triggered by sodium perchlorate, a chemical used in solid rocket fuel.
Less than a month before the explosion, reports indicated the arrival of the Jairan, an Iranian cargo ship linked to the transport of missile components from China to Bandar Abbas.
The Jairan, owned by the US-sanctioned Islamic Republic of Iran Shipping Lines (IRISL), delivered a cargo of sodium perchlorate to the port in late March, following a similar delivery by the MV Golbon in February, according to The Maritime Executive.
The substance is processed in Iranian facilities such as Parchin and Khojir to produce ammonium perchlorate, which constitutes 70% of the fuel for Iran’s solid-fueled ballistic missiles, including the Kheybar-Shekan, Fattah, Fateh-110, and Zolfaghar missiles.
On Sunday, an Iranian defense ministry spokesperson said that there were no military-use shipments among the import or export cargo at the port, adding that foreign media had been spreading rumors regarding the incident.
Iran’s moderate Ham-Mihan newspaper suggested sabotage was a likely cause, noting the coincidence of the blast with the resumption of expert-level talks between Iran and the United States.
Comparisons have been drawn between the Rajaei Port explosion and the 2020 Beirut port disaster. Lebanese authorities said the explosion was triggered by a fire in a warehouse with a huge stockpile of ammonium nitrate fertiliser - commonly used for ammunition and explosives - which had been negligently stored for years.
Rajaei Port, ranked 59th among the world's major ports, is considered vital for Iran’s economy, with no immediate alternative to its vast cargo-handling capacity.
Iranian officials said a full assessment of the damage and a timeline for complete restoration would be announced after the fire is fully extinguished.
