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This handout photo made available by the Iranian Army press office on October 21, 2021 shows military personnel inspecting drones during a military exercise at an undisclosed location in Iran. Image Credit: AFP

Washington: The US Treasury hit Iran’s drone programme with sanctions on Friday, boosting pressure on Tehran ahead of the reopening of negotiations on the country’s nuclear programmew.

The Treasury said lethal unmanned aerial vehicles (UAVs) from Iran’s Islamic Revolutionary Guard Corps have been used to attack US forces and international shipping in the Gulf region.

The drones have also been supplied to Hezbollah, Hamas, and Yemen’s Al Houthi militants, and have additionally been seen in Ethiopia, “where the escalating crisis threatens to destabilise the broader region,” the Treasury said.

The sanctions singled out Brigadier General Saeed Aghajani, who leads the Revolutionary Guards’ UAV Command.

The Treasury said that Aghajani was behind a 2019 drone attack on an oil refinery in Saudi Arabia as well as the July 29, 2021 attack on a commercial ship off the coast of Oman that saw two crewman killed.

Also named to the sanctions blacklist were two companies, Kimia Part Sivan and Oje Parvaz Mado Nafar, which provide components for and help develop the armed UAVs of the Revolutionary Guards.

“Iran’s proliferation of UAVs across the region threatens international peace and stability,” Deputy Treasury Secretary Wally Adeyemo said in a statement.

“Treasury will continue to hold Iran accountable for its irresponsible and violent acts,” he said.

The sanctions came nine days after an attack on a US military base in Al Tanf, Syria that involved drones.

The Pentagon has not identified the source of that incident, which did not cause any injuries, but says generally that Iran has provided drones for such attacks around the region.

“We have seen these kinds of attacks in the past from - from Shia [Shiite] militia groups, which we know are backed and supported by Iran,” Pentagon Spokesman John Kirby said on Monday.

The sanctions were also announced just two days after Iran said it will resume talks with world powers in November on reviving a nuclear deal.

That commitment came after a five-month gap which saw mounting warnings that international patience was wearing thin with Tehran.

Iranian foreign ministry spokesman Saeed Khatibzadeh said that the sanctions showed the “contradictory behavior” of President Joe Biden’s administration.

“An administration that wants to return to nuclear negotiations is following the same methods of [former president Donald] Trump. By imposing sanctions, it is sending a message that does not inspire any confidence at all,” he said.