In the early hours of July 9, cruise missiles hit the Aq Tekeh Khan railway bridge near Aqqala in Golestan province, in Iran’s far north-east. The Revolutionary Guards’ regional corps and state media attributed the strike to US forces. Damage was limited, as it has been at other bridges hit in the war, and trains were running again within days. Washington has not commented, which is common for many strikes in this conflict.

The bridge sits on the Gorgan–Incheh Borun line, one of two railways connecting Iran’s network to Central Asia through Turkmenistan. Iranian outlets described the strike as an attack on the corridor linking Iran to China through Kazakhstan and Turkmenistan, a reading that spread widely.

What the line actually carries

Iran’s official statistics are opaque and frequently incomplete, and under nearly five decades of sanctions the state has had every incentive to blur figures that touch on trade, let alone anything with a military dimension. But even taken at face value, the numbers do not support the corridor claim.

Iran has two main rail gateways to Central Asia: Sarakhs, in the north-east, and Incheh Borun. Shortly before the war, in early 2026, the head of the Khorasan railway said 75 percent of all rail transit into and out of the country passed through Sarakhs, which handled 1.27 million tons in the ten months to late January. The Incheh Borun line’s entire nominal capacity is around 500,000 tons a year, and how much of that is actually used is unknown.

Rail was never central to Iranian trade in any case. Before the war, the bulk moved by sea and road, with high-value, low-weight goods going by air.

Nor does the line point at China. Opened during Hassan Rouhani’s first term as the Iranian section of a 930-kilometre Kazakhstan–Turkmenistan–Iran railway, completed in 2014 at a cost of about $1.4 billion, it was designed to link Russia and the Caspian region to warm-water ports through Iran, connecting northward toward Astrakhan and the Russian network.

The natural, cheaper route for Chinese rail freight is Sarakhs. Chinese traffic on the Incheh Borun line is not zero, with some reports counting several dozen freight trains from China over the past year, but it is marginal, and the line matters far more to Russia and Turkmenistan, notably for minerals, than to Iranian trade with the east.

Which leaves the question. If the bridge was not hit for what it carries for Iran, one possibility is what it carries for someone else.

Where Russia and Iran meet

Turkmenistan’s neutrality is written into its constitution and recognized by the United Nations, and it has taken no side in Iran’s wars. It has also become, since the US naval blockade closed Iran’s ports, one of the country’s principal overland routes to the east. That gives a small, closed and rarely reported state an unusual position: the place where Iranian and Russian logistics physically meet.

A remote bridge shows how US-Iran war is expandingA remote bridge shows how US-Iran war is expanding

The Islamic Republic has a long, documented history of military exchanges with Russia and China. Alongside the rail and road routes, which carry their own risks, combined routes for moving equipment are routine.

Ashgabat’s airport is the nearest major airfield to Iran’s north-eastern border. Iran International reviewed data on roughly 6,500 flights that landed there between the start of November 2025 and early July 2026, a window running from before the war through the ceasefires and the resumption of strikes.

The review has limits, and they should be stated first. Flight-tracking data depends on aircraft transmitting their position and on receivers within range picking it up, so gaps occur. The pre-war portion of the window is short, less than four months. And a change in what tracking systems record after a war begins may reflect changed behavior across a whole region rather than anything specific to one airport.

One category in the data carries more meaning than it might appear to. Scheduled passenger and cargo flights file public flight plans, so their origin and destination almost always appear in tracking records.

Flights that show no origin at all are therefore disproportionately state, military and private operations, which do not file in the same way. The category cannot tell a military transport from a government delegation or a private charter, and some freight operators also fall into it, but it does separate the traffic that files paperwork from the traffic that does not.

The Antonov from China

The most concrete item is a single flight. On April 13, an Antonov An-124, the largest transport aircraft in regular service, landed at Ashgabat from Urumqi in western China, paused, and left early the same day for Cairo. Nothing like it appears elsewhere in the nine months of data.

The aircraft belongs to Volga-Dnepr Airlines, which is designated by the United States, the European Union, Britain, Canada, Australia, Switzerland, Ukraine and France. Britain listed it in June 2024 for “the provision of heavy airlift capacity to the Russian Armed Forces.”

The EU, listing the group’s owners and directors the same month, said Volga-Dnepr has been “playing a crucial role in servicing Russia’s military-industrial complex and providing air transportation services for Russian military purposes,” importing electronics and communications equipment for the war on Ukraine and receiving Russian government subsidies for doing so. The US designation carries a secondary sanctions risk, which applies in principle to any third party that does business with the airline, including by servicing its aircraft.

The specific aircraft carries the registration RA-82074. A Ukrainian investigation named it among Volga-Dnepr An-124s that sharply increased flights to countries friendly to Russia, including China, after the 2022 invasion, in transport the investigators linked to sanctioned goods and military products.

The website openDemocracy reported in 2023 on the company’s role in carrying equipment critical to the Russian military from China. Only three of the company’s An-124s are currently active.

There is an ordinary explanation available. Egypt is a major destination for commercial heavy cargo, and an An-124 routing from China through Central Asia to Cairo is consistent with legitimate project freight. Egypt is also a longstanding Russian arms customer. Volga-Dnepr has said it stopped carrying military cargo in 2018; Western governments that have examined its record disagree, and the Islamic Republic has spent more than four decades perfecting the art of moving sensitive goods under commercial cover.

The pattern around it

Around that flight, several categories of traffic rose after the war began.

Local callsigns in the 795 series, searchable under identifiers such as 795M12 and 795A01, were rare before the war and rose sharply from April: 11 in April, 7 in May and 15 in June. Most were logged with no recorded origin or as Mil Mi-8 military transport helicopters, sometimes several times in a day.

On July 6, three days before the bridge was struck, three such flights were logged. One caveat matters here: the same callsign sometimes appears several times within minutes, which may mean genuine repeat flights or may mean several ground receivers logging one signal, so these counts may be inflated.

Flights with no recorded origin rose from a single instance in January to 8, 6, 4, 9 and 7 in the months from February to June, with two more in the first nine days of July. Given what that category captures, this is the closest the data comes to a measure of non-commercial traffic, and it went from one a month before the war to an average of nearly seven a month after it began.

Callsigns in the RSD series, used by Russian state and military flights, together with Tupolev Tu-204 and Ilyushin Il-96 aircraft, increased noticeably in May. Ilyushin Il-76 heavy transports arriving from within Turkmenistan were logged twice in February and twice in May, with none in the pre-war months. Three AgustaWestland AW139 helicopters, a type used in government and military roles, landed in May and June, though similar flights also appeared in November.

None of this is evidence of military transfers through Ashgabat. There is no official statement or document to that effect, and the relative rise in irregular traffic could have explanations that have nothing to do with the bridge 100 kilometers to the south.

What the data does show is a change in the rhythm of arrivals at Turkmenistan’s main airport that coincides with the intensification of the war, and that was building in the weeks before a railway line to Russia was hit.

Iran International has asked US Central Command to confirm the strike and explain the choice of target. It had not responded at the time of publication; this report will be updated if it does.