Iranian lawmakers have pledged "unforgettable" response to any violation of a nuclear agreement after Leader of the Islamic Revolution said Tehran would "set fire" to the deal if the US reneged on it.

In a letter issued on Sunday, as many as 237 MPs announced their "firm" support for Ayatollah Seyyed Ali Khamenei's recent remarks in an apparent refrain to US�presidential candidates' threat�to tear up the deal.

�In case the opposite side breaks its promise, we will teach the violators an unforgettable lesson, and make the arrogance regret its breach�of promise,� the letter said.

Presumptive Republican candidate Donald Trump said last August it would be hard to "rip up" the deal, but if elected president he would "police that contract so tough they don't have a chance."

"The Islamic Republic won't be the first to violate the nuclear deal. Staying faithful to a promise is a Koranic order," Ayatollah�Khamenei said earlier this week.

"But if the threat from the American presidential candidates to tear up the deal becomes operational then the Islamic Republic will set fire to the deal."

Elsewhere in their statement, the Iranian parliamentarian noted that the country�s strategic nuclear industry should be preserved and developed.

They further said that based on the teachings of the Holy Qur'an, the Islamic Republic will abide by its commitments under the nuclear deal�as long as the opposite side fulfills its obligations.

By Press TV