TEHRAN (Reuters) – Iran on Sunday brushed aside what it called a U.S. “psychological war” against its nuclear programme after a published report described Pentagon planning for possible military strikes against Iranian atomic facilities.

A report by influential investigative journalist Seymour Hersh in The New Yorker magazine, citing unnamed current and former officials, said Washington has stepped up plans for possible attacks on Iranian facilities to curb its atomic work.

The article said the United States was considering using tactical nuclear weapons to destroy Iran’s underground uranium enrichment facilities at Natanz, south of Tehran.

“This is a psychological war launched by Americans because they feel angry and desperate regarding Iran’s nuclear dossier,” Foreign Ministry spokesman Hamid Reza Asefi told a weekly news conference.

“We will stand by our right to nuclear technology. It is our red line. We are ready to deal with any possible scenario. Iran is not afraid of threatening language,” he added.

A report by influential investigative journalist Seymour Hersh in The New Yorker magazine, citing unnamed current and former officials, said Washington has stepped up plans for possible attacks on Iranian facilities to curb its atomic work.

The article said the United States was considering using tactical nuclear weapons to destroy Iran’s underground uranium enrichment facilities at Natanz, south of Tehran.

“This is a psychological war launched by Americans because they feel angry and desperate regarding Iran’s nuclear dossier,” Foreign Ministry spokesman Hamid Reza Asefi told a weekly news conference.

“We will stand by our right to nuclear technology. It is our red line. We are ready to deal with any possible scenario. Iran is not afraid of threatening language,” he added.