India, Nov. 9 -- US Secretary of State Marco Rubio said on Sunday that talks with Iran about a potential peace deal "[haven't] been very productive" and called Iran's demands "simply unacceptable."

Rubio spoke to reporters in Florida before departing from Florida for the G7 Foreign Ministers' meeting in France. His comments came just hours after Donald Trump told CNN in a phone interview that it is "highly unlikely" that they will strike Iran if the two parties make progress in the peace talks being mediated by Qatar and Pakistan.

"I wouldn't say we're at the verge of a breakthrough," Rubio told reporters. "The president would always prefer to solve this and every problem diplomatically. Sometimes that's not possible, unfortunately, but...