Iran Never to Accept Renegotiating Nuclear Deal

"Iran will never yield to foreign pressure on the nuclear deal, its defense program or regional role," Velayati told reporters.

He underlined that the Islamic Republic of Iran will never accept any other condition such as the West's insistence on including issues like the country's defense program or its regional role in the nuclear deal.

"The Joint Comprehensive Plan of Action (JCPOA) is precisely what was signed by Iran and other parties to the JCPOA in writing; neither a word more, nor a word less," Velayati added.

Iran and the six world powers signed the nuclear agreement on July 14, 2015 and started implementing it on January 16, 2016.

Under the JCPOA, Iran undertook to put limits on its nuclear program in exchange for the removal of nuclear-related sanctions imposed against Tehran.

US President Donald Trump has repeatedly described the JCPOA, which was negotiated under his predecessor, Barack Obama, as “the worst and most one-sided transaction Washington has ever entered into,” a characterization he often used during his presidential campaign when he threatened to tear the deal up.

Trump has repeatedly claimed that Iran’s missile program is in violation of the UN Security Council Resolution 2231, which endorses the JCPOA.

Trump said he wanted America's European allies to use the 120-day period before sanctions relief again came up for renewal to agree to tougher measures and new conditions, otherwise Washington would pull out of the deal.