Russia appears to be deepening its defence co-operation with Iran and has received hundreds of one-way attack drones it is using to strike Ukraine, the White House says.
Citing newly declassified information, the White House said the drones, or uncrewed aerial vehicles (UAVs), were built in Iran, shipped across the Caspian Sea and then used by Russian forces against Ukraine.
“Russia has been using Iranian UAVs in recent weeks to strike Kyiv and terrorise the Ukrainian population, and the Russia-Iran military partnership appears to be deepening,” White House spokesman John Kirby said in a statement.
“We are also concerned that Russia is working with Iran to produce Iranian UAVs from inside Russia.”
Kirby said the US had information Russia was receiving materials from Iran required to build a drone manufacturing plant that could be fully operational early next year.
“We are releasing satellite imagery of the planned location of this UAV manufacturing plant in Russia’s Alabuga Special Economic Zone,” he said.
The US has previously sanctioned Iranian executives at a defence manufacturer over drone supplies to Russia.
Iran has acknowledged sending drones to Russia but said in the past they were sent before Russia’s February invasion.
Moscow has denied its forces used Iranian drones in Ukraine.
A White House official said Iran had transferred several hundred drones to Russia since August.
Support between Iran and Russia was flowing both ways, Kirby said, with Iran seeking billions of dollars worth of military equipment from Russia including helicopters and radars.
“Russia has been offering Iran unprecedented defence co-operation, including on missiles, electronics, and air defence,” he said.
“This is a full-scale defence partnership that is harmful to Ukraine, to Iran’s neighbours, and to the international community.”
Kirby said the transfers of drones constituted a violation of United Nations rules and the US would seek to hold the two countries accountable.
Britain, France, Germany, the US and Ukraine say the supply of Iranian-made drones to Russia violates a 2015 UN Security Council resolution enshrining the Iran nuclear deal.
Under the 2015 UN resolution, a conventional arms embargo on Iran was in place until October 2020.
Ukraine and Western powers argue the resolution includes restrictions on missiles and related technologies until October 2023 and can encompass the export and purchase of advanced military systems such as drones.
The Iranian and Russian missions to the UN did not immediately respond to a request for comment.