Last week, a drone presumably of Iranian origin attacked a maintenance facility at the base in Syria's Al-Hasakah province, killing a US contractor and injuring six others, according to the US Department of Defense. In response to the drone attack, the US military carried out airstrikes on facilities belonging to groups affiliated with Iran's Islamic Revolutionary Guards Corps (IRGC), US Defense Secretary Lloyd Austin said.
"Yes, recently there have been events in the east of the Euphrates. Unfortunately, the US side has made groundless accusations regarding the attack by groups close to Iran, and another claim that they have attacked with Iranian drones, these are groundless accusations," Amir-Abdollahian said at a joint press conference after a meeting with Russian Foreign Minister Sergey Lavrov.
The Iranian foreign minister also said that Washington made "baseless, unsubstantiated" claims and "accused others instead of presenting any evidence."
"We do not want tension and unnecessary confrontation, the Islamic Republic of Iran has always played a positive, constructive role in lasting peace and security in the region," Amir-Abdollahian added.
The US military controls parts of the provinces of Al-Hasakah, Raqqa, Aleppo, and Deir Ez-Zor, where the largest Syrian oil and gas fields are located. The Syrian government has repeatedly called the US military presence in the provinces an occupation aimed at stealing Syria's oil.