The Iranian president said his country will continue to talk with the United States about its rapidly moving nuclear program but will not withdraw from its rights due to the U.S. threat.

"We are negotiating, we will have negotiations, we are not after the war, but we are not worried about any threats," President Masoud Pezeshkian said in a speech to a naval officer aired on Saturday in a state television.

"They are not thinking that if they threaten us, we will waive our human rights and certain rights," Pezshkian said. "We will not withdraw, and in all areas we will not lose easily military, scientific and nuclear."

The negotiations reached the "expert" level, which meant both sides were trying to reach an agreement on the details of the possible deal. But Iran's abundance of uranium remains, Tehran insists that it must be allowed, and the Trump administration is increasingly insisting that the Islamic Republic must give up.

President Donald Trump has repeatedly threatened to release air strikes against Iran if a deal is not reached. Iranian officials are increasingly warning them that they can use uranium to store to near-weapon levels, thus pursuing nuclear weapons.

Earlier on Friday, Trump said Iran had received a proposal during the talks, although he did not elaborate on it.

During his trip to the region this week, Trump insisted in almost all incidents that Iran cannot be allowed to obtain a nuclear bomb, and U.S. intelligence agencies assess that Tehran has not actively pursued it, although its plans can still weaponize nuclear materials.

Mohammad Eslami, head of the Iranian Atomic Organization, stressed the peaceful nature of the plan, saying it is being monitored by the United Nations' nuclear regulator.

Eslami said: “There is no agency like ours that monitors the agency.

Meanwhile, Israel often threatens to attack Iran's nuclear facilities, which further complicates the tensions encountered by the Israel-Hamas war in the Middle East in Gaza.

In his first reaction to Trump’s regional visit, Iran’s supreme leader Ayatollah Ali Khamenei said Trump was not honest in claiming to establish peace through power.

“Trump said he wants to use his power to achieve peace,” Khamenei said in a meeting with teachers on state television broadcasting on Saturday.

Khamenei said the United States provided Israel with 10 tons of bombs to "fall in Gaza children, hospitals, houses in Lebanon and anywhere else".

Khamenei, who has the final say on all Iranian countries, reaffirms his traditional position on Israel.

He said: "Of course, the Zionist regime is a place of corruption, war, rift. The Zionist regime is undoubtedly a fatal, dangerous, cancerous tumor, and that will be."

"Of course, this model failed. With the efforts of regional countries, the United States should leave the region and it will leave."

Iran has long viewed the U.S. military presence in the region as a threat to its doorstep, especially after Trump pulled the U.S. from a 2015 nuclear deal with Iran and reimposed serious sanctions.