On Monday, Iran unveiled "84 achievements" in the field of nuclear technology including "a nuclear battery and centrifuges for the oil industry, nuclear fission, nuclear medicine and power plants".
The United States on Tuesday welcomed reports that the European Union was considering new sanctions on Iran and said risks remained for those who were pondering doing business with the Islamic Republic.
Rouhani, for his part, warned the USA against the possible consequences of such a move, saying Tehran's response to such a scenario would be "stronger than can be imagined".
"We are much more prepared than they think, and they will see that if they violate this accord, within a week, less than a week, they will see the result".More news: Feds seize Backpage.com, websites in enforcement action
In January, Trump delivered an ultimatum to the European signatories of the 2015 nuclear accord, which aimed to curb Iran's nuclear program in return for lifting various trade and economic sanctions.
The Republican president said they must agree to "fix the bad flaws of the Iran nuclear deal", which was agreed to under his Democratic predecessor, Barack Obama, or he would refuse to extend US sanctions relief on Iran.
United States sanctions that were lifted under the Joint Comprehensive Plan of Action (JCPOA) of 2015 will resume unless Trump waives them again on May 12.More news: Jacob Zuma corruption case postponed to 8 June
On Sunday, Ali Akbar Salehi, the head of Iran's Atomic Energy Organization, told that state-run press that Iran has the power to begin enriching uranium - needed to create nuclear weapons - to 20% within just four days of the Supreme Leader Ali Khamenei giving the order.
Rouhani said on Monday that Iran's missile capabilities were purely defensive.
Tehran and Moscow are completely unanimous in many regional fields, he said, adding, "It is understandable for us that some Western countries are annoyed with Russian Federation and are trying to make problems for this great power in the region and the world".
President Rouhani referred to his 12 meetings with his Russian counterpart Vladimir Putin in recent years, and added, "Anytime we met, we have moved one step forward in deepening ties and cooperation".More news: Raikkonen on top for dominant Ferrari in Bahrain practice
The US dollar jumped in a day from 54,700 rials to 58,000 rials in the open market in Tehran, local media reported.
- Key messages for World Health Day 2018
- Several injured as tour bus flips on Georgia highway
- Oxlade-Chamberlain silences doubters for sweet redemption
- Celtics routed by Raptors
- CWG 2018: Weightlifting gold rush continues, Punam Yadav claims 5th for India
- Salman Khan to walk out of jail after 5 pm today
- EK and Steve Kyler Discuss Kyrie Irving's Injury
- BJP functionary, in Mumbai for party rally, dies on board train
- Who will replace Antonio Conte this summer?
- Black Panther swims past Titanic at the domestic box office