Israeli Prime Minister Benjamin Netanyahu said Tuesday that sanctions on Iran “better work soon” to prevent the country from developing a nuclear weapon…

Netanyahu said that “the sanctions haven’t worked… because nothing has been stopped” in the Iranian weapons program, and expressed skepticism that a mixture of diplomacy and economic restrictions would be enough to halt the Iranian regime.

“They’re certainly taking a bite out of the Iranian economy, but so far they haven’t rolled back the Iranian program or even stopped it by one iota. I mean I hope that changes, but so far I can tell you the centrifuges are spinning,” Netanyahu said in an interview with CNN. “They were spinning before the talks began. Recently with Iran they were spinning during the talks. They’re spinning as we speak. So if the sanctions are going to work they better work soon.”