Iran said Tuesday, June 7 it would not grant visas to three U.S. congressmen opposed to the nuclear deal, calling their request to monitor the accord a "publicity stunt," the Associated Press reports

The three Republican lawmakers — Reps. Frank LoBiondo of New Jersey, Mike Pompeo of Kansas and Lee Zeldin of New York — all voted against the deal and are part of a GOP backlash against the pact negotiated by Democratic President Barack Obama's administration. The accord limited Iran's ability to enrich uranium in exchange for the lifting of crippling economic sanctions.

Iran's Foreign Ministry said in a letter it refused the request over "the completely inappropriate way you have demanded to visit Iran and interfere in what is of no relevance to (your) official functions."

"Despite what you seem to presume, (members) of the U.S. Congress do not get to dictate the policies of other countries," the letter read, according to AP.

The congressmen asked in February to observe Iran's parliamentary elections, see "American hostages" and visit three nuclear facilities. Iran's semi-official ISNA news agency also said they wanted to discuss Iran's brief detention of 10 U.S. Navy sailors in January.