TEHRAN (Tasnim) - Ali Akbar Velayati, an international adviser to Leader of the Islamic Revolution Ayatollah Seyed Ali Khamenei, slammed the US government for its lack of commitment to an agreement on Iran�s nuclear program one year after the accord was reached between Tehran and six world powers.

The Americans have not fulfilled their commitments under the Joint Comprehensive Plan of Action (JCPOA) and the anti-Iran sanctions have not been fully terminated, either, Velayati said at a meeting of a political party in Tehran on Sunday.

He also complained that some of the conditions the Leader had set for the JCPOA have not been met.

US President Barack Obama has been supposed to endorse a directive on the removal of anti-Iran sanctions, but has not done so yet, Velayati deplored.

Iran and the six countries on July 14, 2015, reached a conclusion over the text of the JCPOA after some two years of diplomatic talks.

The 159-page accord took effect in January 2016 and was supposed to terminate the nuclear-related sanctions against Iran all at once, but its implementation has been hampered mainly due to US policies.

In October 2015, Imam Khamenei sent a letter to President Hassan Rouhani and highlighted nine main points that the administration needs to take note of regarding the course of JCPOA implementation.

The Leader has also repeatedly warned of the US failure to honor commitments under the deal.

�The duty of the other side was removing the sanctions, but it has not fulfilled that duty, meaning that it has lifted part of the sanctions in some way, but the sanctions have not been lifted practically,� Imam Khamenei said on June 15.

The Leader also lashed out at the US for fully keeping the primary sanctions in place, which has in turn affected the secondary sanctions that were to be lifted.

By Tasnim News Agency