President Donald Trump on Friday said that “I’d love not to use” the U.S. military to attack Iran, “but sometimes you have to.”

But Trump also said, “We haven’t made a final decision” on whether to attack Iran.

“We’ll see what happens,” he said. “We’re talking later today. We’ll have some additional talks today.”

Trump’s comment to reporters outside the White House came after he expressed frustration at Iran’s refusal to comply with American demands to curb its nuclear program.

“We’re not thrilled with the way they’re negotiating,” Trump said. “They cannot have nuclear weapons.”