TEHRAN — Ali Akbar Salehi, Iran’s nuclear chief, warned on Tuesday that Iran needs only five days to ramp up its uranium enrichment to 20 percent.

The comments by Salehi come as Donald Trump has repeatedly threatened to renegotiate or walk away from the 2015 nuclear agreement.
“If there is a plan for a reaction and a challenge, we will definitely surprise them,” said Salehi. “If we make the determination, we are able to resume 20 percent-enrichment in at most five days.”

He added, “Definitely, we are not interested in such a thing happening. We have not achieved the deal easily to let it go easily. We are committed to the deal and we are loyal to it.”