President Prokopis Pavlopoulos on Monday received US Senator Robert Menendez in a meeting that was also attended by US Ambassador Geoffrey Pyatt.
Menendez, a Democrat, and Republican Senator Marco Rubio are the architects of the Eastern Mediterranean Security and Energy Partnership Act which aims to reshape US strategy in the Eastern Mediterranean.
Europe was considered a trustful partner of the Russian Federation, but after sanctions imposed by the EU this changes, Russian Ambassador Valery Kuzmin stated on Monday.
The diplomat on Monday visited Cluj, on which occasion he told the media that the sanctions imposed on his country by the EU are "illegal" and do nothing else by "strengthen" the Russian Federation.
The United States slapped sanctions on a Turkish businessman on Feb. 7 for violating US sanctions on Iran.
Iran executed two men accused of economic crimes on Nov. 14, part of an effort to stem financial misconduct as the country faces an economic crisis and new U.S. sanctions targeting its oil sector.
Russia warned Friday that if the US followed through with threats to impose further harsh economic sanctions it would be seen as a "declaration of economic war".