Iran's Supreme Leader Ali Khamenei has moved into a special underground shelter in Tehran after senior military and security officials assessed an increased risk of a potential US attack, two sources close to the government told Iran International.
The facility was described as a fortified site with interconnected tunnels.
The sources indicated that Masoud Khamenei, the supreme leader’s third son, has taken over day-to-day management of the leader’s office and serves as the main channel for communication with executive branches of the government.








Iranian security forces deployed unknown chemical substances amid deadly crackdowns on protestors in several cities earlier this month, eyewitnesses told Iran International, causing severe breathing problems and burning pain.
They described symptoms that they said went beyond those caused by conventional tear gas, including severe breathing difficulties, sudden weakness and loss of movement.
“What was fired was not tear gas,” one protester said.
"People collapsed," another eyewitness said.
Iranian authorities crushed unrest earlier this month in the deadliest crackdown on protestors in the Islamic Republic's nearly 50-year history.
According to accounts, the gases caused intense burning of the eyes, skin and lungs, along with acute respiratory distress, repeated coughing, dizziness, loss of balance and, in some cases, vomiting or coughing up blood.
Witnesses said the severity and persistence of the symptoms differed from their past experiences with tear gas, although they said they could not identify the substances used.
Gas fired into crowds and escape routes
Witnesses said gas canisters were fired into crowds and along escape routes, including narrow streets and alleys.
According to the accounts, in some cases gunfire began at the same time, or immediately after, protesters lost the ability to walk or run and fell to the ground.
Several witnesses said that moments of immobilization became points at which shooting intensified, particularly when protesters collapsed in alleys or while trying to flee.
Reports came from multiple cities, including Tehran, Isfahan and Sabzevar.
Sabzevar footage
Videos received from Sabzevar, a city in Razavi Khorasan province in northeastern Iran, and reviewed by Iran International showed security personnel wearing special protective clothing and masks designed for hazardous chemical materials, positioned on military-style vehicles in city streets.
Warning symbols associated with hazardous substances were visible on vehicles in the footage. Sounds consistent with gunfire could be heard in separate videos.
Iranian forces are seen wearing chemical-hazard protective gear on military-style vehicles in the streets of Sabzevar, northeast Iran.
A yellow triangular hazardous-materials warning sign is visible in the footage, while gunfire can be heard in a separate video.
Isfahan accounts
In central province of Isfahan, witnesses said tear gas with chemical characteristics was fired directly into crowds of protesters, including teenagers, young people and older individuals.
They said attempts to reduce the effects of the gas using common methods such as wet cloths quickly proved ineffective.
Witnesses described scenes in which people fleeing into alleys developed severe breathing difficulties and collapsed after running short distances. They said shooting began while protesters were in that condition, with scenes they described as “like war movies.”
Other witnesses described the smell of the gases as a mixture of pepper, swimming-pool chlorine, bleach and vinegar, and said the sky filled with smoke in red, yellow and white colors.
Several women and a 17-year-old girl described seeing an unknown device that, they said, “without the sound of gunfire, fired something like flames in red and yellow.”
“Seconds later, the street was full of smoke and vapor,” they said, adding that the smell resembled ammonia, drain cleaner and, in some areas, mustard.
One woman said two plainclothes agents put on protective masks before throwing gas canisters toward nearby crowds. She said young people closest to the impact “quickly developed coughing, intense burning and inability to move” and shouted: “I’m burned.”
Tehran accounts
In Tehran, witnesses from several neighborhoods said gas was fired repeatedly, producing thick smoke and severe irritation.
Protesters said the gases caused intense burning of the eyes and lungs and numbness in the lips, with smoke described as green, yellow and black.
Witnesses said protesters who felt suffocation sought refuge inside nearby homes, but said security agents were positioned near some of those locations.
In addition to tear gas, witnesses spoke of “unknown gases with more severe effects,” saying those exposed experienced sudden weakness, inability to walk and loss of breath.

Fear of hospitals
In a number of accounts, witnesses said fear of the presence of security agents at hospitals and the risk of arrest led many wounded protesters to avoid medical centers.
They said some treatment was instead carried out at private homes with the help of volunteer doctors.
Some witnesses said people they knew continued to suffer severe coughing, nausea and skin blistering days after exposure.
Medical assessment
Alan Fotouhi, a physician and professor of clinical pharmacology based in Sweden, told Iran International that the symptoms described by witnesses did not match those typically associated with standard tear gas.
He said the pattern of symptoms, severity of harm and persistence of effects differed from what is normally observed with conventional tear gas exposure.
Fotouhi said the reported effects could result from a combination of high-dose tear gas and other highly irritating chemical substances, but said identifying the exact materials would require laboratory analysis.
Iranian authorities have not commented on the witness accounts.
Iran is a signatory to the Chemical Weapons Convention, which restricts the use of chemical agents against civilians.
Human rights groups have condemned the use of force against protesters in Iran, including the use of tear gas and live ammunition.
Iran has sharply reduced operations at its consulate in central London, Iran International reported, following protests that took place outside the building during the recent unrest in Iran.
According to information received by Iran International, the consulate’s first floor has been fully evacuated and locked, and staff numbers at the site have been significantly reduced. Consular services are now being provided at a much more limited level than before.
Images obtained by Iran International in recent days showed office equipment and administrative materials being removed from the building, with vehicles seen transferring staff and items to another location earlier this week.
The changes follow demonstrations held outside Iran’s embassy and consulate in London during the nationwide protests in Iran.
British police previously deployed metal barriers and vehicles to secure the area during the demonstrations.
Iran’s Supreme National Security Council instructed newspaper editors and online media managers to stop publishing independent reporting on protest deaths and to avoid interviewing bereaved families, according to information shared with Iran International.
The instruction, according to the information received by Iran International, was conveyed during a meeting with managers of domestic media outlets and explicitly required them to refer only to figures released by state bodies, while avoiding any independent accounting of deaths.
The same directive, the sources said, also prohibited interviews or conversations with families of those killed.

Iran’s Supreme National Security Council instructed newspaper editors and online media managers to stop publishing independent reporting on protest deaths and to avoid interviewing bereaved families, according to information shared with Iran International.
The instruction, according to the information received by Iran International, was conveyed during a meeting with managers of domestic media outlets and explicitly required them to refer only to figures released by state bodies, while avoiding any independent accounting of deaths.
The same directive, the sources said, also prohibited interviews or conversations with families of those killed.
Sources described as familiar with the decision said the measure was aimed at preventing broader disclosure of the scale of the killings of protesters, which they said occurred under direct orders from Supreme Leader Ali Khamenei.
Media managers question the order
The directive was delivered, the report said, as some domestic media managers challenged the government’s line during the same session, pointing to internal information suggesting a death toll in the thousands and questioning instructions issued under President Masoud Pezeshkian and the Supreme National Security Council.
Those participants, according to the account, argued there is a wide gap between official numbers and information circulating inside the country.
Iran’s National Security Council, a body operating under the Interior Minister, on Wednesday published figures for the first time covering deaths on January 8 and 9.
The statement put the number of killed protesters at 690. It also listed a total death toll of 3,117 across the two days, but described 2,427 of those as “martyrs” drawn from “innocent people and guardians of order and security,” a designation in the Islamic Republic’s official language generally used for those aligned with state institutions.
The Islamic Republic’s Martyrs Foundation also announced on Wednesday that military and security forces had taken the lives of only 690 protesters, while another 2,427 people were said to have been killed by protesters. The institution had initially reported 3,317 deaths, but hours later revised the figure down to 3,117.
Iran International said the official numbers differ sharply from information it has received, eyewitness accounts, and reporting by international media.
The outlet’s editorial board has previously put the number of protesters killed by state forces at at least 12,000, according to its published statement.
The number of civilians killed in Iran’s crackdown on protests may be more than 20,000, the UN special rapporteur on human rights in Iran said, citing reports from doctors inside the country, Bloomberg reported.
Mai Sato said earlier this week that civilian deaths were estimated at 5,000 or more, adding that medical reports suggested the toll could be far higher, at about 20,000 or more.
Iran International’s statement described the killings on January 8 and 9 as unprecedented in modern Iranian history in geographic spread, intensity of violence, and number of deaths.
A 37-year-old physiotherapist and clinic founder was shot dead during protests in Iran earlier this month, and his family was later forced to pay money to retrieve his body, a source familiar with the matter told Iran International.
The source identified him as Masoud Bolourchi, a Tehran-based physiotherapist and founder of Rush Physiotherapy Clinic, and said he was shot from behind on Jan. 8.
According to the source, his family later located his body in Kahrizak, south of Tehran, and were pressured by security officials into paying what was described as a “bullet fee” before it was released.
Bolourchi had studied in Budapest, Hungary, and had returned to Iran several years ago, the source said.