Several US sanctions will impact the Iranian government's acquisition of US dollars and gold trading, Iranian bonds, the Iranian automotive  sector and the export of carpets and food products.

The tough sanctions arrive three months after the US withdrew from the nuclear deal with Iran, and, according to US president Donald Trump, have the intent to impose "maximum economic pressure" on the country, writes news bureau AP.

Iranian president Hassan Rouhani has accused the US of ''psychological warfare," saying Iran is open to negotiations with the US if the Americans prove that they are to be trusted.

"We are always in favor of diplomacy and talks."

"But talks need honesty. Trump's call for direct talks is only for domestic consumption in America ahead of elections ... and to create chaos in Iran," said the president to Iranian TV Monday.

"How do they show that they are to be trusted? By going back to the existing nuclear deal," said the president.

When Trump withdrew the US from the nuclear deal in 2015, which he called "horrible" and "unilateral", he ordered earlier sanctions to be reimposed against Iran.

This is the first round of sanctions, which entered into force Tuesday.

The second round, which is directed against Iran's most important earning source, the oil and gas sector, will be reintroduced on November 4.

Sanctions were originally introduced by Trump's predecessor, Barrack Obama, and had huge international support in the years before the nuclear deal.

However, Trump has not demonstrated the same support for sanctions. Many of the US allies continue to support the nuclear deal and cannot see that Iran has exceeded the conditions in the agreement.

English Edit: Lena Rutkowski

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