In an interview with Fox News, the US special envoy for the Middle East, Steve Witkoff, has outlined as a key component the Iran nuclear deal, signed under the Obama administration, as a guideline for his ongoing talks with Tehran.

Under this nuclear deal—the Joint Comprehensive Plan of Action—which US President Donald Trump withdrew from in 2015, Iran is prohibited from enriching uranium above 3.67 percent.

Iran should not be enriching uranium above 3.67 percent, in some circumstances it is 60 percent, in other circumstances it is 20 percent. It should not be. One should not have what they call a “civilian nuclear program” where they enrich uranium to more than 3.67 percent, Witkoff said.

The next round of talks with Iran will focus on verifying their uranium enrichment program and then, ultimately, their weapons capabilities, the US representative said.

“That includes missiles, the type of missiles that they have stockpiled there, and it includes the trigger for a bomb.” added Witkoff.

He said they are here to see if they can resolve this situation through diplomacy and dialogue. The first meeting was positive, constructive, and persuasive, he noted.

Witkoff, however, declined to directly answer a question about whether American, rather than UN, inspectors will verify the execution of any deal reached by Iran.