Russia has rejected US suggestions that it might be violating a UN resolution by using an Iranian air base to launch air strikes in Syria.
UN Security Council Resolution 2231 prohibits the supply, sale and transfer of combat aircraft to Iran.
The US State Department said on Wednesday its attorneys were assessing whether Russia has violated the resolution but had not yet reached a determination.
State Department spokesman Mark Toner said Russia’s continued use of the Iranian base to strike Syrian targets “doesn’t help” to reach a cessation of hostilities in the country’s civil war between government forces and militants.
He spoke after Russian Foreign Minister Sergei Lavrov responded to the US allegations during a news conference in Moscow.
Lavrov told journalists: “There are no reasons to suspect Russia of violating Resolution 2231. According to this resolution it is necessary to coordinate with the UN Security Council the supply, sale and transfer to Iran of certain types of weapons, including military aircraft. In the case which is being discussed currently neither supply nor transfer or sale of military aircraft to Iran has taken place.”
#Lavrov: There are no reasons to suspect #Russia of violating
UN</a> Security Council Resolution 2231 <a href="https://t.co/AzFkr8CotO">pic.twitter.com/AzFkr8CotO</a></p>— Russian Mission UN (RussiaUN) August 17, 2016
He added: “These military aircraft are being used by Russian air forces with Iran’s agreement as a part of the anti-terrorist operation on the territory of the Syrian Arab Republic and on the request of the legal Syrian leadership which the Islamic republic of Iran also cooperates with upon request.”
At the same time the chairman of Iran’s parliament Ali Larijani stressed that Russia does not have a permanent military base within the Islamic Republic.
He told a parliamentary session: “We have not given a military base to anyone. The fact that we have cooperation with Russia as our ally over regional issues, specifically on Syria, does not mean that we have given the Russians a military base. If some media have reported such a thing, I deny that.”
Larijani’s comments seemed to be more aimed at addressing concerns within his own country over the Russian air strikes.
Iran’s constitution, ratified after its 1979 Islamic Revolution, states no foreign power can have a permanent military base on its soil.
US calls use of Hamadan air base “unfortunate”
Russia’s Defence Ministry said that on Wednesday SU-34 fighter bombers flying from Iran’s Hamadan air base had struck Islamic State targets in Syria’s Deir al-Zor province, destroying two command posts and killing more than 150 militants.
Moscow first used Iran as a base from which to launch air strikes in Syria on Tuesday, deepening its involvement in the five-year-old Syrian civil war and angering the United States.
Washington called the move “unfortunate”.