"In the current stage that Russia has strengthened and Iran has also grown stronger militarily and economically, cooperation between Russia and Iran is considered as a serious threat to the US plots and hegemony," FARS News agency reported Walid al-Zaitouni as saying.
On Monday Russian President Vladimir Putin arrived in Tehran to meet Iran's top officials and take part in the Gas Exporting Countries Forum (GECF) conference.
Vladimir Putin met with Supreme Leader of the Islamic Revolution Ayatollah Seyed Ali Khamenei and also his counterpart President Rouhani.
Following his visit, Iranian Ambassador to Russia Mehdi Sanaei said that Tehran and Moscow had entered a new phase of mutual cooperation after President Putin's visit to Iran and his meetings with Ayatollah Khamenei and President Rouhani.
"The recent visit of the Russian president to Tehran was an evidence of the developed relations between Iran and Russia in all fields," FARS News reported Mehdi Sanaei as saying.