"The path chosen by the Islamic Republic of Iran is perseverance, resistance", Rouhani said in televised remarks. "Each time that we were able to thwart the plots, the people and the government were side by side."

Over the objections of allies, Trump in May pulled the United States from the nuclear deal signed between Tehran and world powers in 2015.

He re-imposed US sanctions that had been suspended in return for controls on Tehran's nuclear programme, effectively barring many multinational firms from doing business in Iran.

"The United States is more and more isolated on the subject of sanctions," said Rouhani. "The illegal logic of the United States is not supported by any of the international organisations."

Iran has faced mounting economic woes since Trump's announcement, which added to pressure on its currency. The rial has lost around half its value against the dollar in nine months.

Many importers and exporters have complained they do not have enough currency to enable trade with foreign countries.

But Rouhani said Iran would ensure exporters and importers have "the necessary currency".